---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21840'
abstract:
- lang: eng
  text: The transport properties of nanofluidic channels are usually studied under
    constant (DC) voltage or pressure driving. However, the frequency response under
    sinusoidal (AC) drivings offers rich insights into the time-dependent transport
    mechanisms. Inspired by recent electrochemical approaches, we investigate the
    couplings between ionic and electronic transport under AC driving. We show that
    conduction electrons of the channel walls participate in ionic current via capacitive
    electrochemical coupling, defining a critical frequency and length scale where
    electron-dominated conductivity emerges. We further analyze how electron–ion coupling
    modifies electro-osmotic flows and demonstrate that fluctuation-induced momentum
    transfer between the electrolyte and wall electrons produces distinct AC transport
    signatures, depending on the charge carrier polarity. Altogether, we establish
    a frequency-dependent transport matrix that couples ionic, electronic, and hydrodynamic
    flows. These findings establish AC nanofluidic transport as a powerful probe of
    interfacial phenomena under confinement and suggest new directions for engineering
    nanofluidic functionalities through electron–electrolyte coupling.
acknowledgement: The authors thank Nicolas Chapuis for fruitful discussions. L.B.
  acknowledges support from the ERC project n-AQUA under Grant Agreement No. 101071937.
  B.C. acknowledges support from the CFM Foundation and the NOMIS Foundation. N.K.
  acknowledges support from the Swiss National Science Foundation (SNSF) under Grant
  No. CRSK-2_237930.
article_number: '134704'
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Baptiste
  full_name: Coquinot, Baptiste
  id: f8417bd4-f599-11ee-a482-b927e3ed1e8e
  last_name: Coquinot
  orcid: 0000-0001-5524-596X
- first_name: Mathieu
  full_name: Lizée, Mathieu
  last_name: Lizée
- first_name: Lydéric
  full_name: Bocquet, Lydéric
  last_name: Bocquet
- first_name: Nikita
  full_name: Kavokine, Nikita
  last_name: Kavokine
citation:
  ama: Coquinot B, Lizée M, Bocquet L, Kavokine N. Electron–electrolyte coupling in
    AC transport through nanofluidic channels. <i>The Journal of Chemical Physics</i>.
    2026;164(13). doi:<a href="https://doi.org/10.1063/5.0313352">10.1063/5.0313352</a>
  apa: Coquinot, B., Lizée, M., Bocquet, L., &#38; Kavokine, N. (2026). Electron–electrolyte
    coupling in AC transport through nanofluidic channels. <i>The Journal of Chemical
    Physics</i>. AIP Publishing. <a href="https://doi.org/10.1063/5.0313352">https://doi.org/10.1063/5.0313352</a>
  chicago: Coquinot, Baptiste, Mathieu Lizée, Lydéric Bocquet, and Nikita Kavokine.
    “Electron–Electrolyte Coupling in AC Transport through Nanofluidic Channels.”
    <i>The Journal of Chemical Physics</i>. AIP Publishing, 2026. <a href="https://doi.org/10.1063/5.0313352">https://doi.org/10.1063/5.0313352</a>.
  ieee: B. Coquinot, M. Lizée, L. Bocquet, and N. Kavokine, “Electron–electrolyte
    coupling in AC transport through nanofluidic channels,” <i>The Journal of Chemical
    Physics</i>, vol. 164, no. 13. AIP Publishing, 2026.
  ista: Coquinot B, Lizée M, Bocquet L, Kavokine N. 2026. Electron–electrolyte coupling
    in AC transport through nanofluidic channels. The Journal of Chemical Physics.
    164(13), 134704.
  mla: Coquinot, Baptiste, et al. “Electron–Electrolyte Coupling in AC Transport through
    Nanofluidic Channels.” <i>The Journal of Chemical Physics</i>, vol. 164, no. 13,
    134704, AIP Publishing, 2026, doi:<a href="https://doi.org/10.1063/5.0313352">10.1063/5.0313352</a>.
  short: B. Coquinot, M. Lizée, L. Bocquet, N. Kavokine, The Journal of Chemical Physics
    164 (2026).
date_created: 2026-05-07T08:53:03Z
date_published: 2026-04-07T00:00:00Z
date_updated: 2026-05-18T07:34:57Z
day: '07'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1063/5.0313352
external_id:
  arxiv:
  - '2505.02478'
file:
- access_level: open_access
  checksum: a896969c829be2a79859bd277f87b44c
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-18T07:31:23Z
  date_updated: 2026-05-18T07:31:23Z
  file_id: '21889'
  file_name: 2026_JourChemPhysics_Coquinot.pdf
  file_size: 5497515
  relation: main_file
  success: 1
file_date_updated: 2026-05-18T07:31:23Z
has_accepted_license: '1'
intvolume: '       164'
issue: '13'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '04'
oa: 1
oa_version: Published Version
publication: The Journal of Chemical Physics
publication_identifier:
  eissn:
  - 1089-7690
  issn:
  - 0021-9606
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Electron–electrolyte coupling in AC transport through nanofluidic channels
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 164
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21841'
abstract:
- lang: eng
  text: The long-standing notion that genotypes map to phenotypes through simple one
    gene–one trait relationships continues to shape both research in the life sciences
    and public understanding, with implications for policy and funding priorities.
    Yet this paradigm is increasingly recognized as inadequate for explaining continuous
    phenotypic variation and the complex genetic architectures of the genotype–phenotype
    map. Modern genetics emerged from the early 20th-century synthesis of Mendelian
    and biometric schools of heredity, with R.A. Fisher demonstrating early on how
    multiple discrete loci could collectively produce continuous variation. Despite
    this fundamental insight, Mendelism—with its focus on single genes and standardized
    genetic backgrounds—became the dominant framework, shaping current genetics research
    and molecular biology as well as science education. The advent of large-scale
    genomic data has revealed yet again the limitations of this reductionist approach.
    Evidence from quantitative genetics now shows that most phenotypes arise from
    complex networks of many interdependent genes and their dynamic responses to environmental
    perturbations. Here we trace the historical roots of how Mendelian classical genetics
    departed from the biometric school to create the current predominant paradigm
    in genetics, despite fundamentally unresolved issues. Moving on from this one-sided
    paradigm will require systematic development of integrative, evolutionarily grounded
    experimental approaches that better capture the multigenic and context-dependent
    nature of inheritance. Achieving such an extended perspective will require methodological
    innovation, including advances in large-scale (e.g. automated) phenotyping. Dedicated
    research programs will be necessary to advance a new era of genetic research into
    the complex mechanisms underlying phenotypic variation.
acknowledgement: We thank a variety of further colleagues for the many inspiring discussions
  on the nature of heredity, especially the workshops in Berlin. Special thanks also
  to the Stellenbosch Institute for Advanced Studies (STIAS) to provide DT the leisure
  and freedom to write up the first version of this perspective. Thanks also to three
  reviewers who have helped to improve the manuscript. Two dedicated symposia on the
  topic were funded by the Max-Planck Society.
article_number: iyag024
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Diethard
  full_name: Tautz, Diethard
  last_name: Tautz
- first_name: Luisa F
  full_name: Pallares, Luisa F
  last_name: Pallares
- first_name: Leif
  full_name: Andersson, Leif
  last_name: Andersson
- first_name: Neda
  full_name: Barghi, Neda
  last_name: Barghi
- first_name: Nicholas H
  full_name: Barton, Nicholas H
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
- first_name: Rachael
  full_name: Bay, Rachael
  last_name: Bay
- first_name: Yingguang Frank
  full_name: Chan, Yingguang Frank
  last_name: Chan
- first_name: Angela
  full_name: Hancock, Angela
  last_name: Hancock
- first_name: Tobias S
  full_name: Kaiser, Tobias S
  last_name: Kaiser
- first_name: Daniel
  full_name: Koenig, Daniel
  last_name: Koenig
- first_name: Zacharias
  full_name: Kontarakis, Zacharias
  last_name: Kontarakis
- first_name: Miriam
  full_name: Liedvogel, Miriam
  last_name: Liedvogel
- first_name: Juliette
  full_name: de Meaux, Juliette
  last_name: de Meaux
- first_name: Magnus
  full_name: Nordborg, Magnus
  last_name: Nordborg
- first_name: Abraham A
  full_name: Palmer, Abraham A
  last_name: Palmer
- first_name: Michael
  full_name: Purugganan, Michael
  last_name: Purugganan
- first_name: Christian
  full_name: Schlötterer, Christian
  last_name: Schlötterer
- first_name: Karl
  full_name: Schmid, Karl
  last_name: Schmid
- first_name: Didier Y R
  full_name: Stainier, Didier Y R
  last_name: Stainier
- first_name: Detlef
  full_name: Weigel, Detlef
  last_name: Weigel
- first_name: Jochen B W
  full_name: Wolf, Jochen B W
  last_name: Wolf
- first_name: Dieter
  full_name: Ebert, Dieter
  last_name: Ebert
- first_name: Greg
  full_name: Gibson, Greg
  last_name: Gibson
citation:
  ama: 'Tautz D, Pallares LF, Andersson L, et al. Beyond Mendel: A call to revisit
    the genotype–phenotype map through new experimental paradigms. <i>Genetics</i>.
    2026;232(4). doi:<a href="https://doi.org/10.1093/genetics/iyag024">10.1093/genetics/iyag024</a>'
  apa: 'Tautz, D., Pallares, L. F., Andersson, L., Barghi, N., Barton, N. H., Bay,
    R., … Gibson, G. (2026). Beyond Mendel: A call to revisit the genotype–phenotype
    map through new experimental paradigms. <i>Genetics</i>. Oxford University Press.
    <a href="https://doi.org/10.1093/genetics/iyag024">https://doi.org/10.1093/genetics/iyag024</a>'
  chicago: 'Tautz, Diethard, Luisa F Pallares, Leif Andersson, Neda Barghi, Nicholas
    H Barton, Rachael Bay, Yingguang Frank Chan, et al. “Beyond Mendel: A Call to
    Revisit the Genotype–Phenotype Map through New Experimental Paradigms.” <i>Genetics</i>.
    Oxford University Press, 2026. <a href="https://doi.org/10.1093/genetics/iyag024">https://doi.org/10.1093/genetics/iyag024</a>.'
  ieee: 'D. Tautz <i>et al.</i>, “Beyond Mendel: A call to revisit the genotype–phenotype
    map through new experimental paradigms,” <i>Genetics</i>, vol. 232, no. 4. Oxford
    University Press, 2026.'
  ista: 'Tautz D, Pallares LF, Andersson L, Barghi N, Barton NH, Bay R, Chan YF, Hancock
    A, Kaiser TS, Koenig D, Kontarakis Z, Liedvogel M, de Meaux J, Nordborg M, Palmer
    AA, Purugganan M, Schlötterer C, Schmid K, Stainier DYR, Weigel D, Wolf JBW, Ebert
    D, Gibson G. 2026. Beyond Mendel: A call to revisit the genotype–phenotype map
    through new experimental paradigms. Genetics. 232(4), iyag024.'
  mla: 'Tautz, Diethard, et al. “Beyond Mendel: A Call to Revisit the Genotype–Phenotype
    Map through New Experimental Paradigms.” <i>Genetics</i>, vol. 232, no. 4, iyag024,
    Oxford University Press, 2026, doi:<a href="https://doi.org/10.1093/genetics/iyag024">10.1093/genetics/iyag024</a>.'
  short: D. Tautz, L.F. Pallares, L. Andersson, N. Barghi, N.H. Barton, R. Bay, Y.F.
    Chan, A. Hancock, T.S. Kaiser, D. Koenig, Z. Kontarakis, M. Liedvogel, J. de Meaux,
    M. Nordborg, A.A. Palmer, M. Purugganan, C. Schlötterer, K. Schmid, D.Y.R. Stainier,
    D. Weigel, J.B.W. Wolf, D. Ebert, G. Gibson, Genetics 232 (2026).
date_created: 2026-05-07T08:53:40Z
date_published: 2026-04-01T00:00:00Z
date_updated: 2026-05-18T07:51:26Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1093/genetics/iyag024
external_id:
  pmid:
  - '41701356'
file:
- access_level: open_access
  checksum: 5a862c539f9dec4511277ad8927c549c
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-18T07:48:45Z
  date_updated: 2026-05-18T07:48:45Z
  file_id: '21890'
  file_name: 2026_Genetics_Tautz.pdf
  file_size: 542844
  relation: main_file
  success: 1
file_date_updated: 2026-05-18T07:48:45Z
has_accepted_license: '1'
intvolume: '       232'
issue: '4'
keyword:
- classic genetics
- quantitative genetics
- genotype–phenotype map
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
publication: Genetics
publication_identifier:
  eissn:
  - 1943-2631
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Beyond Mendel: A call to revisit the genotype–phenotype map through new experimental
  paradigms'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 232
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21842'
abstract:
- lang: eng
  text: "AM CVn stars are ultra-compact semi-detached binaries consisting of a white
    dwarf primary and a hydrogen-depleted secondary. In this\r\npaper, we present
    spectroscopic and photometric results of 15 transient sources pre-classified as
    AM CVn candidates. Our analysis confirms\r\n9 systems of the type AM CVn, 3 hydrogen-rich
    cataclysmic variables (accreting white dwarfs with near-main-sequence stars for
    donors),\r\nand 3 systems that could be evolved cataclysmic variables. Eight of
    the AM CVn stars are analysed spectroscopically for the first time,\r\nwhich increases
    the number of spectroscopically confirmed AM CVns by about 10%. TESS data revealed
    the orbital period of the AM CVn\r\nstar ASASSN-20pv to be Porb =27.282 min, which
    helps to constrain the possible values of its mass ratio. TESS also helped to
    determine\r\nthe superhump periods of one AM CVn star (ASASSN-19ct, Psh =30.94
    min) and two cataclysmic variables we classify as WZ Sge stars\r\n(Psh =90.77
    min for ZTF18aaaasnn and Psh =91.6min for ASASSN-15na).We identified very different
    abundances in the spectra of theAM\r\nCVns binaries ASASSN-15kf and ASASSN-20pv
    (both Porb ∼27.5min), suggesting different type of donors. Six of the studied
    AMCVns are\r\nX-ray sources, which helped to determine their mass accretion rates.
    Photometry shows that the duration of all the superoutbursts detected\r\nin the
    AM CVns is consistent with expectations from the disc instability model. Finally,
    we provide refined criteria for the identification of\r\nnew systems using all-sky
    surveys such as LSST."
acknowledgement: "We are grateful to the anonymous referee for providing\r\nus with
  useful comments and suggestions that improved our manuscript.\r\nJK and LRS acknowledge
  support from NASA grants NNH22ZDA001N-6152\r\nand 80NSSC24K0638. MPM is partially
  supported by the Swiss National\r\nScience Foundation IZSTZ0_216537 and by UNAM
  PAPIIT-IG101224. Based\r\non observations obtained at the international Gemini Observatory,
  a program\r\nof NSF NOIRLab, which is managed by the Association of Universities
  for\r\nResearch in Astronomy (AURA) under a cooperative agreement with the U.S.\r\nNational
  Science Foundation on behalf of the Gemini Observatory partnership:\r\nthe U.S.
  National Science Foundation (United States), National Research\r\nCouncil (Canada),
  Agencia Nacional de Investigación y Desarrollo (Chile), Ministerio de Ciencia, Tecnología
  e Innovación (Argentina), Ministério\r\nda Ciência, Tecnologia, Inovações e Comunicações
  (Brazil), and Korea\r\nAstronomy and Space Science Institute (Republic of Korea).
  The Gemini\r\ndata were obtained from programs GN-2023B-Q-310 and GS-2024A-Q-311\r\n(PI:
  Rivera Sandoval) and processed using DRAGONS (Data Reduction for\r\nAstronomy from
  Gemini Observatory North and South) The Digitized Sky\r\nSurveys were produced at
  the Space Telescope Science Institute under U.S.\r\nGovernment grant NAG W-2166.
  The images of these surveys are based on\r\nphotographic data obtained using the
  Oschin Schmidt Telescope on Palomar\r\nMountain and the UK Schmidt Telescope. The
  plates were processed into the\r\npresent compressed digital form with the permission
  of these institutions.\r\nThe National Geographic Society – Palomar Observatory
  Sky Atlas (POSS-I)\r\nwas made by the California Institute of Technology with grants
  from the\r\nNational Geographic Society. The Second Palomar Observatory Sky Survey\r\n(POSS-II)
  was made by the California Institute of Technology with funds\r\nfrom the National
  Science Foundation, the National Geographic Society, the\r\nSloan Foundation, the
  Samuel Oschin Foundation, and the Eastman Kodak\r\nCorporation. The Oschin Schmidt
  Telescope is operated by the California\r\nInstitute of Technology and Palomar Observatory.
  The UK Schmidt Telescope\r\nwas operated by the Royal Observatory Edinburgh, with
  funding from the\r\nUK Science and Engineering Research Council (later the UK Particle
  Physics\r\nand Astronomy Research Council), until 1988 June, and thereafter by the\r\nAnglo-Australian
  Observatory. The blue plates of the southern Sky Atlas\r\nand its Equatorial Extension
  (together known as the SERC-J), as well as the\r\nEquatorial Red (ER), and the Second
  Epoch [red] Survey (SES) were all taken\r\nwith the UK Schmidt. Supplemental funding
  for sky-survey work at the ST\r\nScI is provided by the European Southern Observatory.
  Based on observations\r\nobtained with the Samuel Oschin Telescope 48-inch and the
  60-inch Telescope\r\nat the Palomar Observatory as part of the Zwicky Transient
  Facility project.\r\nZTF is supported by the National Science Foundation under Grants
  No. AST-\r\n1440341 and AST-2034437 and a collaboration including current partners\r\nCaltech,
  IPAC, the Oskar Klein Center at Stockholm University, the University\r\nof Maryland,
  University of California, Berkeley, the University of Wisconsin\r\nat Milwaukee,
  University of Warwick, Ruhr University, Cornell University,\r\nNorthwestern University,
  and Drexel University. Operations are conducted\r\nby COO, IPAC, and UW. This work
  has used data from the European\r\nSpace Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia),\r\nprocessed
  by the Gaia Data Processing and Analysis Consortium (DPAC,\r\nhttps://www.cosmos.esa.int/web/gaia/dpac/consortium).
  Funding for the\r\nDPAC has been provided by national institutions, in particular,
  the institutions\r\nparticipating in the Gaia Multilateral Agreement. We acknowledge
  with\r\nthanks the variable star observations from the AAVSO International Database\r\ncontributed
  by observers worldwide and used in this research. This paper\r\nincludes data collected
  by the TESS mission. Funding for the TESS mission\r\nis provided by the NASA Science
  Mission Directorate. Some of the data\r\npresented in this paper were obtained from
  the B. Mikulski Archive for Space\r\nTelescopes (MAST). This research has made use
  of the SIMBAD database,\r\noperated at CDS, Strasbourg, France. This research has
  made use of ‘Aladin\r\nsky atlas’ developed at CDS, Strasbourg Observatory, France.
  This research\r\nhas made use of the VizieR catalogue access tool, CDS, Strasbourg,
  France."
article_number: e052
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Jan
  full_name: Kára, Jan
  last_name: Kára
- first_name: Liliana
  full_name: Rivera Sandoval, Liliana
  last_name: Rivera Sandoval
- first_name: Wendy
  full_name: Mendoza, Wendy
  last_name: Mendoza
- first_name: Thomas
  full_name: Maccarone, Thomas
  last_name: Maccarone
- first_name: Manuel
  full_name: Pichardo Marcano, Manuel
  last_name: Pichardo Marcano
- first_name: Luis E.
  full_name: Salazar Manzano, Luis E.
  last_name: Salazar Manzano
- first_name: Ryan J.
  full_name: Oelkers, Ryan J.
  last_name: Oelkers
- first_name: Joannes C
  full_name: van Roestel, Joannes C
  id: 4d122fc8-6083-11f0-87a5-97d68b860333
  last_name: van Roestel
citation:
  ama: Kára J, Rivera Sandoval L, Mendoza W, et al. A study of transients from ground-based
    surveys reveals new ultra-compact accreting white dwarf binaries. <i>Publications
    of the Astronomical Society of Australia</i>. 2026;43. doi:<a href="https://doi.org/10.1017/pasa.2026.10184">10.1017/pasa.2026.10184</a>
  apa: Kára, J., Rivera Sandoval, L., Mendoza, W., Maccarone, T., Pichardo Marcano,
    M., Salazar Manzano, L. E., … van Roestel, J. C. (2026). A study of transients
    from ground-based surveys reveals new ultra-compact accreting white dwarf binaries.
    <i>Publications of the Astronomical Society of Australia</i>. Cambridge University
    Press. <a href="https://doi.org/10.1017/pasa.2026.10184">https://doi.org/10.1017/pasa.2026.10184</a>
  chicago: Kára, Jan, Liliana Rivera Sandoval, Wendy Mendoza, Thomas Maccarone, Manuel
    Pichardo Marcano, Luis E. Salazar Manzano, Ryan J. Oelkers, and Joannes C van
    Roestel. “A Study of Transients from Ground-Based Surveys Reveals New Ultra-Compact
    Accreting White Dwarf Binaries.” <i>Publications of the Astronomical Society of
    Australia</i>. Cambridge University Press, 2026. <a href="https://doi.org/10.1017/pasa.2026.10184">https://doi.org/10.1017/pasa.2026.10184</a>.
  ieee: J. Kára <i>et al.</i>, “A study of transients from ground-based surveys reveals
    new ultra-compact accreting white dwarf binaries,” <i>Publications of the Astronomical
    Society of Australia</i>, vol. 43. Cambridge University Press, 2026.
  ista: Kára J, Rivera Sandoval L, Mendoza W, Maccarone T, Pichardo Marcano M, Salazar
    Manzano LE, Oelkers RJ, van Roestel JC. 2026. A study of transients from ground-based
    surveys reveals new ultra-compact accreting white dwarf binaries. Publications
    of the Astronomical Society of Australia. 43, e052.
  mla: Kára, Jan, et al. “A Study of Transients from Ground-Based Surveys Reveals
    New Ultra-Compact Accreting White Dwarf Binaries.” <i>Publications of the Astronomical
    Society of Australia</i>, vol. 43, e052, Cambridge University Press, 2026, doi:<a
    href="https://doi.org/10.1017/pasa.2026.10184">10.1017/pasa.2026.10184</a>.
  short: J. Kára, L. Rivera Sandoval, W. Mendoza, T. Maccarone, M. Pichardo Marcano,
    L.E. Salazar Manzano, R.J. Oelkers, J.C. van Roestel, Publications of the Astronomical
    Society of Australia 43 (2026).
date_created: 2026-05-07T08:55:00Z
date_published: 2026-03-27T00:00:00Z
date_updated: 2026-05-12T06:57:40Z
day: '27'
ddc:
- '520'
department:
- _id: IlCa
doi: 10.1017/pasa.2026.10184
file:
- access_level: open_access
  checksum: f8f3cd3765948e8b276176c71c9d4e02
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-12T06:54:10Z
  date_updated: 2026-05-12T06:54:10Z
  file_id: '21862'
  file_name: 2026_PublAstronomicalSocAustralia_Kara.pdf
  file_size: 3681016
  relation: main_file
  success: 1
file_date_updated: 2026-05-12T06:54:10Z
has_accepted_license: '1'
intvolume: '        43'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
publication: Publications of the Astronomical Society of Australia
publication_identifier:
  eissn:
  - 1448-6083
  issn:
  - 1323-3580
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A study of transients from ground-based surveys reveals new ultra-compact accreting
  white dwarf binaries
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 43
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21844'
abstract:
- lang: eng
  text: Little red dots (LRDs) are a newly identified class of broad-line active galactic
    nuclei (AGNs) with a distinctive V-shaped spectrum characterized by red optical
    and blue UV continuum emission. Their high abundance at redshifts of z ∼ 6–8 and
    decline at lower redshifts suggest a transient origin. We propose that the spectral
    shape of LRDs originates from compact binary black hole systems, in which each
    black hole is surrounded by a mini-disk and embedded within a larger circumbinary
    disk. With a binary separation of ≲103 Schwarzschild radii, the Wien tail of a
    T ≃ 5000 K blackbody spectrum at the inner edge of the circumbinary disk produces
    the red optical emission, while the mini-disks power the UV continuum. Binary
    torques carve out a gap between the circumbinary disk and the mini-disks, setting
    the turnover wavelength of the V-shaped spectrum around the Balmer limit. This
    scenario naturally reproduces LRD spectra requiring only modest dust attenuation
    (AV ≲ 1 mag), resolving overestimated luminosities for LRDs in previous studies
    and alleviating a tension with the so-called Sołtan argument. This model predicts
    distinct spectral evolution as the binary orbit decays through binary disk interactions
    and gravitational-wave (GW) emission, linking early-stage “proto-LRD” binaries
    to the broader AGN population and late-stage “LRD descendants” to coalescing binaries
    detectable in GW experiments.
acknowledgement: We greatly thank Kenta Hotokezaka and Hanpu Liu for constructive
  discussions. K.I., J.S., X.C., and L.C.H. acknowledge support from National Natural
  Science Foundation of China (grant Nos. 12573015, 1251101148, 12233001, and 12473037),
  the Beijing Natural Science Foundation (grant No. IS25003), and the China Manned
  Space Program (grant No. CMS-CSST-2025-A09). J.S. is also supported by “The Fundamental
  Research Funds for the Central Universities, Peking University” (grant No. 7100604896).
  Z.H. acknowledges support by US NSF grant AST-2006176 and by NASA grant Nos. 80NSSC24K0440
  and 80NSSC22K0822.
article_number: '25'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Kohei
  full_name: Inayoshi, Kohei
  last_name: Inayoshi
- first_name: Jinyi
  full_name: Shangguan, Jinyi
  last_name: Shangguan
- first_name: Xian
  full_name: Chen, Xian
  last_name: Chen
- first_name: Luis C.
  full_name: Ho, Luis C.
  last_name: Ho
- first_name: Zoltán
  full_name: Haiman, Zoltán
  id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
  last_name: Haiman
  orcid: 0000-0003-3633-5403
citation:
  ama: Inayoshi K, Shangguan J, Chen X, Ho LC, Haiman Z. The emergence of Little Red
    Dots from binary massive black holes. <i>The Astrophysical Journal</i>. 2026;1002(1).
    doi:<a href="https://doi.org/10.3847/1538-4357/ae548d">10.3847/1538-4357/ae548d</a>
  apa: Inayoshi, K., Shangguan, J., Chen, X., Ho, L. C., &#38; Haiman, Z. (2026).
    The emergence of Little Red Dots from binary massive black holes. <i>The Astrophysical
    Journal</i>. IOP Publishing. <a href="https://doi.org/10.3847/1538-4357/ae548d">https://doi.org/10.3847/1538-4357/ae548d</a>
  chicago: Inayoshi, Kohei, Jinyi Shangguan, Xian Chen, Luis C. Ho, and Zoltán Haiman.
    “The Emergence of Little Red Dots from Binary Massive Black Holes.” <i>The Astrophysical
    Journal</i>. IOP Publishing, 2026. <a href="https://doi.org/10.3847/1538-4357/ae548d">https://doi.org/10.3847/1538-4357/ae548d</a>.
  ieee: K. Inayoshi, J. Shangguan, X. Chen, L. C. Ho, and Z. Haiman, “The emergence
    of Little Red Dots from binary massive black holes,” <i>The Astrophysical Journal</i>,
    vol. 1002, no. 1. IOP Publishing, 2026.
  ista: Inayoshi K, Shangguan J, Chen X, Ho LC, Haiman Z. 2026. The emergence of Little
    Red Dots from binary massive black holes. The Astrophysical Journal. 1002(1),
    25.
  mla: Inayoshi, Kohei, et al. “The Emergence of Little Red Dots from Binary Massive
    Black Holes.” <i>The Astrophysical Journal</i>, vol. 1002, no. 1, 25, IOP Publishing,
    2026, doi:<a href="https://doi.org/10.3847/1538-4357/ae548d">10.3847/1538-4357/ae548d</a>.
  short: K. Inayoshi, J. Shangguan, X. Chen, L.C. Ho, Z. Haiman, The Astrophysical
    Journal 1002 (2026).
date_created: 2026-05-10T22:02:14Z
date_published: 2026-05-01T00:00:00Z
date_updated: 2026-05-11T07:09:12Z
day: '01'
ddc:
- '520'
department:
- _id: ZoHa
doi: 10.3847/1538-4357/ae548d
external_id:
  arxiv:
  - '2505.05322'
file:
- access_level: open_access
  checksum: b4506dfef3dd6da335775071d8f2a0a6
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-11T07:07:22Z
  date_updated: 2026-05-11T07:07:22Z
  file_id: '21853'
  file_name: 2026_AstrophysicalJour_Inayoshi.pdf
  file_size: 3041897
  relation: main_file
  success: 1
file_date_updated: 2026-05-11T07:07:22Z
has_accepted_license: '1'
intvolume: '      1002'
issue: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
  eissn:
  - 1538-4357
  issn:
  - 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: The emergence of Little Red Dots from binary massive black holes
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1002
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21845'
abstract:
- lang: eng
  text: UTe2 exhibits the remarkable phenomenon of re-entrant superconductivity, whereby
    the zero-resistance state reappears above 40 tesla after being suppressed with
    a field of around 10 tesla. One potential pairing mechanism, invoked in the related
    re-entrant superconductors UCoGe and URhGe, involves transverse fluctuations of
    a ferromagnetic order parameter. However, the requisite ferromagnetic order—present
    in both UCoGe and URhGe—is absent in UTe2, and neutron scattering shows instead
    that the magnetic susceptibility is peaked at an antiferromagnetic wavevector.
    Here, we measure the magnetotropic susceptibility of UTe2 across two field-angle
    planes. This quantity is sensitive to the magnetic susceptibility in a direction
    transverse to the applied magnetic field—a quantity that is not accessed in conventional
    magnetization measurements. We observe a very large decrease in the magnetotropic
    susceptibility over a broad range of field orientations, indicating a large increase
    in the transverse magnetic susceptibility. Because our technique probes the magnetic
    susceptibility in the long wavelength (q = 0) limit, this suggests that the strong
    transverse susceptibility arises from ferromagnetic spin fluctuations. These ferromagnetic
    fluctuations are likely important for understanding the pairing mechanism in UTe2,
    as all three superconducting phases of UTe2 surround this region of enhanced susceptibility
    in the field-angle phase diagram.
acknowledged_ssus:
- _id: NanoFab
acknowledgement: We appreciate technical support from Salvatore Bagiante, Evgeniia
  Volobueva, Lubuna Shafeek, Ali Bangura, and Zoltán Köllö, and scientific discussions
  with Daniel Agterberg, Johnpierre Paglione, Qimiao Si, Josephine Yu and Yue Yu.
  V.Z., A.N., M.N., and K.A.M. acknowledge funding received from the European Research
  Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (TROPIC-101078696). V.Z., A.N., M.N., and K.A.M. thank the ISTA Nanofabrication
  Facility for technical support. B.J.R. acknowledges funding from the Office of Basic
  Energy Sciences of the United States Department of Energy under award number DE-SC0020143
  for data analysis and writing. The National High Magnetic Field Laboratory is supported
  by the National Science Foundation through NSF/DMR-2128556*, the State of Florida,
  and the U.S. Department of Energy. A.S. acknowledges support from the DOE/BES “Science
  of 100 T” grant. A.S. thanks Downtown Subscription in Santa Fe, NM, for their patience
  in hosting him. Sample preparation and characterization were supported by the NSF
  through DMR-2105191.
article_number: '3742'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Valeska
  full_name: Zambra, Valeska
  id: 467ed36b-dc96-11ea-b7c8-b043a380b282
  last_name: Zambra
  orcid: 0000-0002-8806-5719
- first_name: Amit
  full_name: Nathwani, Amit
  id: 1a362536-4d02-11f1-8543-8351136efc50
  last_name: Nathwani
- first_name: Muhammad
  full_name: Nauman, Muhammad
  id: 32c21954-2022-11eb-9d5f-af9f93c24e71
  last_name: Nauman
  orcid: 0000-0002-2111-4846
- first_name: Sylvia K.
  full_name: Lewin, Sylvia K.
  last_name: Lewin
- first_name: Corey E.
  full_name: Frank, Corey E.
  last_name: Frank
- first_name: Nicholas P.
  full_name: Butch, Nicholas P.
  last_name: Butch
- first_name: Arkady
  full_name: Shekhter, Arkady
  last_name: Shekhter
- first_name: B. J.
  full_name: Ramshaw, B. J.
  last_name: Ramshaw
- first_name: Kimberly A
  full_name: Modic, Kimberly A
  id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
  last_name: Modic
  orcid: 0000-0001-9760-3147
citation:
  ama: Zambra V, Nathwani A, Nauman M, et al. Giant transverse magnetic fluctuations
    at the edge of re-entrant superconductivity in UTe2. <i>Nature Communications</i>.
    2026;17. doi:<a href="https://doi.org/10.1038/s41467-026-71899-7">10.1038/s41467-026-71899-7</a>
  apa: Zambra, V., Nathwani, A., Nauman, M., Lewin, S. K., Frank, C. E., Butch, N.
    P., … Modic, K. A. (2026). Giant transverse magnetic fluctuations at the edge
    of re-entrant superconductivity in UTe2. <i>Nature Communications</i>. Springer
    Nature. <a href="https://doi.org/10.1038/s41467-026-71899-7">https://doi.org/10.1038/s41467-026-71899-7</a>
  chicago: Zambra, Valeska, Amit Nathwani, Muhammad Nauman, Sylvia K. Lewin, Corey
    E. Frank, Nicholas P. Butch, Arkady Shekhter, B. J. Ramshaw, and Kimberly A Modic.
    “Giant Transverse Magnetic Fluctuations at the Edge of Re-Entrant Superconductivity
    in UTe2.” <i>Nature Communications</i>. Springer Nature, 2026. <a href="https://doi.org/10.1038/s41467-026-71899-7">https://doi.org/10.1038/s41467-026-71899-7</a>.
  ieee: V. Zambra <i>et al.</i>, “Giant transverse magnetic fluctuations at the edge
    of re-entrant superconductivity in UTe2,” <i>Nature Communications</i>, vol. 17.
    Springer Nature, 2026.
  ista: Zambra V, Nathwani A, Nauman M, Lewin SK, Frank CE, Butch NP, Shekhter A,
    Ramshaw BJ, Modic KA. 2026. Giant transverse magnetic fluctuations at the edge
    of re-entrant superconductivity in UTe2. Nature Communications. 17, 3742.
  mla: Zambra, Valeska, et al. “Giant Transverse Magnetic Fluctuations at the Edge
    of Re-Entrant Superconductivity in UTe2.” <i>Nature Communications</i>, vol. 17,
    3742, Springer Nature, 2026, doi:<a href="https://doi.org/10.1038/s41467-026-71899-7">10.1038/s41467-026-71899-7</a>.
  short: V. Zambra, A. Nathwani, M. Nauman, S.K. Lewin, C.E. Frank, N.P. Butch, A.
    Shekhter, B.J. Ramshaw, K.A. Modic, Nature Communications 17 (2026).
corr_author: '1'
date_created: 2026-05-10T22:02:15Z
date_published: 2026-04-29T00:00:00Z
date_updated: 2026-05-11T06:36:00Z
day: '29'
ddc:
- '530'
department:
- _id: KiMo
- _id: GradSch
doi: 10.1038/s41467-026-71899-7
external_id:
  arxiv:
  - '2506.08984'
file:
- access_level: open_access
  checksum: 8cb95b033ad2a1a7a8181f6f078c05b5
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-11T06:32:12Z
  date_updated: 2026-05-11T06:32:12Z
  file_id: '21850'
  file_name: 2026_NatureComm_Zambra.pdf
  file_size: 1784917
  relation: main_file
  success: 1
file_date_updated: 2026-05-11T06:32:12Z
has_accepted_license: '1'
intvolume: '        17'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
project:
- _id: bd968c70-d553-11ed-ba76-cde40b0aba64
  grant_number: '101078696'
  name: Gaining leverage with spin liquids and superconductors
publication: Nature Communications
publication_identifier:
  eissn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '21174'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity
  in UTe2
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21846'
abstract:
- lang: eng
  text: 'We compile a sample of 83 little red dots (LRDs) with JWST imaging and find
    that a substantial fraction (∼43%, rising to ≳80% for the most luminous LRDs)
    host one or more spatially offset, UV-bright companions at projected separations
    of 0.5 kpc ≲ d ≲ 5 kpc, with median 〈d〉 = 1.0 kpc. This fraction is even higher
    when smaller spatial scales are probed at high signal-to-noise ratio: the two
    most strongly lensed LRDs, A383-LRD1 and the newly discovered A68-LRD1, both have
    UV-bright companions at separations of only d ∼ 0.3 kpc, below the resolution
    limit of most unlensed JWST samples. We explore whether these ubiquitous red/blue
    configurations may be physically linked to the formation of LRDs, in analogy with
    the “synchronized pair” scenario originally proposed for direct-collapse black
    hole formation. In this picture, UV radiation from the companions, with typically
    modest stellar masses (M∗ ∼ 108−109 M⊙), suppresses molecular hydrogen cooling
    in nearby gas, allowing nearly isothermal collapse and the formation of extremely
    compact objects, such as massive black holes, supermassive stars, or quasi-stars.
    Using component-resolved photometry and spectral energy distribution modeling,
    we infer Lyman–Werner radiation fields of J21,LW ∼ 102.5–105 at the locations
    of the red components, comparable to those required in direct-collapse models,
    suggesting that the necessary photodissociation conditions are realized in many
    LRD systems. This framework provides a simple and self-consistent explanation
    for the extreme compactness and distinctive spectral properties of LRDs and links
    long-standing theoretical models for early compact object formation directly to
    a population now observed with JWST in the early Universe.'
acknowledgement: 'We thank Earl Bellinger, Fabio Pacucci, Andrea Ferrara, and Dale
  Kocevski for useful discussions. This work is based on observations made with the
  NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski
  Archive for Space Telescopes at the Space Telescope Science Institute, which is
  operated by the Association of Universities for Research in Astronomy, Inc., under
  NASA contract NAS 5-03127 for JWST. These imaging observations are associated with
  programs 1345, 1180, 1181, 1243, 6882, 2561, 1324, 4111, and 1895. The compiled
  dataset can be accessed at doi:10.17909/1m8f-9c47. The Cosmic Dawn Center (DAWN)
  is funded by the Danish National Research Foundation under grant DNRF140. J.M. and
  A.T. acknowledge funding by the European Union (ERC, AGENTS, 101076224). This work
  was performed in part at Aspen Center for Physics, which is supported by National
  Science Foundation grant PHY-2210452. This work used the following Python packages:
  Matplotlib (J. D. Hunter 2007), SciPy (P. Virtanen et al. 2020), NumPy (S. van der
  Walt et al. 2011), AstroPy (Astropy Collaboration et al. 2022), colossus (B. Diemer
  2018), and photutils (L. Bradley et al. 2025).'
article_number: L4
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Josephine F.W.
  full_name: Baggen, Josephine F.W.
  last_name: Baggen
- first_name: Matthew T.
  full_name: Scoggins, Matthew T.
  last_name: Scoggins
- first_name: Pieter
  full_name: Van Dokkum, Pieter
  last_name: Van Dokkum
- first_name: Zoltán
  full_name: Haiman, Zoltán
  id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
  last_name: Haiman
  orcid: 0000-0003-3633-5403
- first_name: Alberto
  full_name: Torralba Torregrosa, Alberto
  id: 018f0249-0e87-11f0-b167-cbce08fbd541
  last_name: Torralba Torregrosa
  orcid: 0000-0001-5586-6950
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
citation:
  ama: 'Baggen JFW, Scoggins MT, Van Dokkum P, Haiman Z, Torralba Torregrosa A, Matthee
    JJ. Connecting the dots: UV-bright companions of Little Red Dots as Lyman–Werner
    sources enabling direct-collapse Black Hole formation. <i>The Astrophysical Journal
    Letters</i>. 2026;1002(1). doi:<a href="https://doi.org/10.3847/2041-8213/ae58a5">10.3847/2041-8213/ae58a5</a>'
  apa: 'Baggen, J. F. W., Scoggins, M. T., Van Dokkum, P., Haiman, Z., Torralba Torregrosa,
    A., &#38; Matthee, J. J. (2026). Connecting the dots: UV-bright companions of
    Little Red Dots as Lyman–Werner sources enabling direct-collapse Black Hole formation.
    <i>The Astrophysical Journal Letters</i>. IOP Publishing. <a href="https://doi.org/10.3847/2041-8213/ae58a5">https://doi.org/10.3847/2041-8213/ae58a5</a>'
  chicago: 'Baggen, Josephine F.W., Matthew T. Scoggins, Pieter Van Dokkum, Zoltán
    Haiman, Alberto Torralba Torregrosa, and Jorryt J Matthee. “Connecting the Dots:
    UV-Bright Companions of Little Red Dots as Lyman–Werner Sources Enabling Direct-Collapse
    Black Hole Formation.” <i>The Astrophysical Journal Letters</i>. IOP Publishing,
    2026. <a href="https://doi.org/10.3847/2041-8213/ae58a5">https://doi.org/10.3847/2041-8213/ae58a5</a>.'
  ieee: 'J. F. W. Baggen, M. T. Scoggins, P. Van Dokkum, Z. Haiman, A. Torralba Torregrosa,
    and J. J. Matthee, “Connecting the dots: UV-bright companions of Little Red Dots
    as Lyman–Werner sources enabling direct-collapse Black Hole formation,” <i>The
    Astrophysical Journal Letters</i>, vol. 1002, no. 1. IOP Publishing, 2026.'
  ista: 'Baggen JFW, Scoggins MT, Van Dokkum P, Haiman Z, Torralba Torregrosa A, Matthee
    JJ. 2026. Connecting the dots: UV-bright companions of Little Red Dots as Lyman–Werner
    sources enabling direct-collapse Black Hole formation. The Astrophysical Journal
    Letters. 1002(1), L4.'
  mla: 'Baggen, Josephine F. W., et al. “Connecting the Dots: UV-Bright Companions
    of Little Red Dots as Lyman–Werner Sources Enabling Direct-Collapse Black Hole
    Formation.” <i>The Astrophysical Journal Letters</i>, vol. 1002, no. 1, L4, IOP
    Publishing, 2026, doi:<a href="https://doi.org/10.3847/2041-8213/ae58a5">10.3847/2041-8213/ae58a5</a>.'
  short: J.F.W. Baggen, M.T. Scoggins, P. Van Dokkum, Z. Haiman, A. Torralba Torregrosa,
    J.J. Matthee, The Astrophysical Journal Letters 1002 (2026).
date_created: 2026-05-10T22:02:15Z
date_published: 2026-04-10T00:00:00Z
date_updated: 2026-05-11T06:48:33Z
day: '10'
ddc:
- '520'
department:
- _id: ZoHa
- _id: JoMa
doi: 10.3847/2041-8213/ae58a5
external_id:
  arxiv:
  - '2602.02702'
file:
- access_level: open_access
  checksum: 8c31d8603cd6ad39c772a72d136dc3f8
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-11T06:44:37Z
  date_updated: 2026-05-11T06:44:37Z
  file_id: '21851'
  file_name: 2026_AstrophysicalJourLetters_Baggen.pdf
  file_size: 13359642
  relation: main_file
  success: 1
file_date_updated: 2026-05-11T06:44:37Z
has_accepted_license: '1'
intvolume: '      1002'
issue: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
project:
- _id: bd9b2118-d553-11ed-ba76-db24564edfea
  grant_number: '101076224'
  name: Young galaxies as tracers and agents of cosmic reionization
publication: The Astrophysical Journal Letters
publication_identifier:
  eissn:
  - 2041-8213
  issn:
  - 2041-8205
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Connecting the dots: UV-bright companions of Little Red Dots as Lyman–Werner
  sources enabling direct-collapse Black Hole formation'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1002
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21847'
abstract:
- lang: eng
  text: Analog quantum simulators provide access to many-body dynamics beyond the
    reach of classical computation. However, extracting physical insights from experimental
    data is often hindered by measurement noise, limited observables, and incomplete
    knowledge of the underlying microscopic model. Here, we develop a machine learning
    approach based on a variational autoencoder (VAE) to analyze interference measurements
    of tunnel-coupled one-dimensional Bose gases, which realize the sine-Gordon quantum
    field theory. Trained in an unsupervised manner, the VAE learns a minimal latent
    representation that strongly correlates with the equilibrium control parameter
    of the system. Applied to nonequilibrium protocols, the latent space uncovers
    signatures of frozen-in solitons following rapid cooling, and reveals anomalous
    postquench dynamics not captured by conventional correlation-based methods. These
    results demonstrate that generative models can extract physically interpretable
    variables directly from noisy and sparse experimental data, providing complementary
    probes of equilibrium and nonequilibrium physics in quantum simulators. More broadly,
    our work highlights how machine learning can supplement established field-theoretical
    techniques, paving the way for scalable, data-driven discovery in quantum many-body
    systems.
acknowledgement: "We thank Sebastian Erne and Igor Mazets for helpful discussions
  and sharing codes for the transfer matrix sampling. This research was funded in
  part by the European Research Council: ERC Advanced Grant “Emergence in Quantum
  Physics” (EmQ) under Grant Agreement No. 101097858 and ERC Advanced Grant “Artificial
  agency and learning in quantum environments” (QuantAI) under Grant Agreement No.
  101055129. This work was also supported by the Austrian Science Fund (FWF) (SFB
  BeyondC F7102, 10.55776/F71). G.F.-F. acknowledges the European Research Council
  AdG NOQIA; MCIN/AEI [PGC2018-0910.13039/501100011033, CEX2019-000910-S/10.13039/501100011033,
  Plan National FIDEUA PID2019-106901GB-I00, Plan National STAMEENA PID2022-139099NB,
  I00, project funded by MCIN/AEI/10.13039/501100011033 and by the “European Union
  NextGenerationEU/PRTR” (PRTR-C17.I1), FPI]; QUANTERA DYNAMITE PCI2022-132919 under
  Grant Agreement No. 101017733; Ministry for Digital Transformation and of Civil
  Service of the Spanish Government through the QUANTUM ENIA project call—Quantum
  Spain project, and by the European Union through the Recovery, Transformation and
  Resilience Plan—NextGenerationEU within the framework of the Digital Spain 2026
  Agenda; Fundació Cellex; Fundació Mir-Puig; Generalitat de Catalunya (European Social
  Fund FEDER and CERCA program); Barcelona Supercomputing Center MareNostrum (FI-2023-3-0024);
  (HORIZON-CL4-2022-QUANTUM-02-SGA PASQuanS2.1, 101113690, EU Horizon 2020 FET-OPEN
  OPTOlogic, Grant No. 899794, QU-ATTO, 101168628), EU Horizon Europe Program (This
  project has received funding from the European Union's Horizon Europe research and
  innovation program under Grant Agreement No. 101080086 NeQST); ICFO Internal “QuantumGaudi”
  project. This research was funded in whole or in part by the Austrian Science Fund
  (FWF) [10.55776/COE1] through the Cluster of Excellence quantA (Quantum Science
  Austria).\r\n\r\nThe views and opinions expressed in this article are however those
  of the author(s) only and do not necessarily reflect those of the European Union
  or the European Research Council—neither the European Union nor the granting authority
  can be held responsible for them."
article_number: '023094'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Frederik Skovbo
  full_name: Moller, Frederik Skovbo
  id: 43cbcc83-0564-11f0-a935-e37325525859
  last_name: Moller
- first_name: Gabriel
  full_name: Fernández-Fernández, Gabriel
  last_name: Fernández-Fernández
- first_name: Thomas
  full_name: Schweigler, Thomas
  last_name: Schweigler
- first_name: Paulin
  full_name: De Schoulepnikoff, Paulin
  last_name: De Schoulepnikoff
- first_name: Jörg
  full_name: Schmiedmayer, Jörg
  last_name: Schmiedmayer
- first_name: Gorka
  full_name: Muñoz-Gil, Gorka
  last_name: Muñoz-Gil
citation:
  ama: Moller FS, Fernández-Fernández G, Schweigler T, De Schoulepnikoff P, Schmiedmayer
    J, Muñoz-Gil G. Learning minimal representations of many-body physics from snapshots
    of a quantum simulator. <i>Physical Review Research</i>. 2026;8(2). doi:<a href="https://doi.org/10.1103/r7pj-gl7r">10.1103/r7pj-gl7r</a>
  apa: Moller, F. S., Fernández-Fernández, G., Schweigler, T., De Schoulepnikoff,
    P., Schmiedmayer, J., &#38; Muñoz-Gil, G. (2026). Learning minimal representations
    of many-body physics from snapshots of a quantum simulator. <i>Physical Review
    Research</i>. American Physical Society. <a href="https://doi.org/10.1103/r7pj-gl7r">https://doi.org/10.1103/r7pj-gl7r</a>
  chicago: Moller, Frederik Skovbo, Gabriel Fernández-Fernández, Thomas Schweigler,
    Paulin De Schoulepnikoff, Jörg Schmiedmayer, and Gorka Muñoz-Gil. “Learning Minimal
    Representations of Many-Body Physics from Snapshots of a Quantum Simulator.” <i>Physical
    Review Research</i>. American Physical Society, 2026. <a href="https://doi.org/10.1103/r7pj-gl7r">https://doi.org/10.1103/r7pj-gl7r</a>.
  ieee: F. S. Moller, G. Fernández-Fernández, T. Schweigler, P. De Schoulepnikoff,
    J. Schmiedmayer, and G. Muñoz-Gil, “Learning minimal representations of many-body
    physics from snapshots of a quantum simulator,” <i>Physical Review Research</i>,
    vol. 8, no. 2. American Physical Society, 2026.
  ista: Moller FS, Fernández-Fernández G, Schweigler T, De Schoulepnikoff P, Schmiedmayer
    J, Muñoz-Gil G. 2026. Learning minimal representations of many-body physics from
    snapshots of a quantum simulator. Physical Review Research. 8(2), 023094.
  mla: Moller, Frederik Skovbo, et al. “Learning Minimal Representations of Many-Body
    Physics from Snapshots of a Quantum Simulator.” <i>Physical Review Research</i>,
    vol. 8, no. 2, 023094, American Physical Society, 2026, doi:<a href="https://doi.org/10.1103/r7pj-gl7r">10.1103/r7pj-gl7r</a>.
  short: F.S. Moller, G. Fernández-Fernández, T. Schweigler, P. De Schoulepnikoff,
    J. Schmiedmayer, G. Muñoz-Gil, Physical Review Research 8 (2026).
date_created: 2026-05-10T22:02:15Z
date_published: 2026-04-29T00:00:00Z
date_updated: 2026-05-11T06:58:56Z
day: '29'
ddc:
- '530'
department:
- _id: EdHa
doi: 10.1103/r7pj-gl7r
external_id:
  arxiv:
  - '2509.13821'
file:
- access_level: open_access
  checksum: dbfc58e1e176f7b63e0d274eb0d1bffa
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-11T06:56:58Z
  date_updated: 2026-05-11T06:56:58Z
  file_id: '21852'
  file_name: 2026_PhysicalReviewResearch_Moller.pdf
  file_size: 1829628
  relation: main_file
  success: 1
file_date_updated: 2026-05-11T06:56:58Z
has_accepted_license: '1'
intvolume: '         8'
issue: '2'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
publication: Physical Review Research
publication_identifier:
  eissn:
  - 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Learning minimal representations of many-body physics from snapshots of a quantum
  simulator
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21848'
abstract:
- lang: eng
  text: 'Despite the success of mRNA therapeutics, challenges remain in optimizing
    immune responses and minimizing side effects. Cell-specific antigen delivery may
    help reduce required doses and improve vaccine efficacy. In this study, we report
    on a targeted delivery system for mRNA to a specific subset of skin-resident antigen-presenting
    cells: Langerhans cells. By functionalizing lipid nanoparticles with a langerin-specific
    glycomimetic ligand, we achieve selective mRNA delivery to both murine and human
    primary Langerhans cells with minimal off-target uptake, at the same time resulting
    in significantly increased mRNA translation. This targeted mRNA delivery not only
    enhances antigen presentation and T-cell responses but also enables dose-sparing
    and superior antitumor immunity compared with conventional immunization in a B16-OVA
    tumor model. Importantly, our platform’s high compatibility with various lipid
    nanoparticle formulations offers a flexible and precise tool for skin-directed
    mRNA delivery.'
acknowledged_ssus:
- _id: PreCl
acknowledgement: We thank Mareike Rentzsch for her intellectual contributions during
  the course of our discussions. We thank Michael Schunn from the Preclinical Facility
  of the Institute of Science and Technology Austria for his continuous technical
  support. Guarantor of the work is FS. This project was supported by “Seedfinancing”
  (P2282679) of the Austrian Federal Ministry of Digital and Economic Affairs and
  the Ministry of Climate Action and Energy, handled by the Austrian Wirtschaftsservice,
  as well as by...
article_processing_charge: No
article_type: original
author:
- first_name: Klara
  full_name: Klein, Klara
  last_name: Klein
- first_name: Litty
  full_name: Johnson, Litty
  last_name: Johnson
- first_name: Ramona
  full_name: Rîca, Ramona
  last_name: Rîca
- first_name: Mirza
  full_name: Sarcevic, Mirza
  last_name: Sarcevic
- first_name: Gabriele
  full_name: Carta, Gabriele
  last_name: Carta
- first_name: Saskia
  full_name: Seiser, Saskia
  last_name: Seiser
- first_name: Adelheid
  full_name: Elbe-Bürger, Adelheid
  last_name: Elbe-Bürger
- first_name: Freyja
  full_name: Langer, Freyja
  id: 3C1BE782-F248-11E8-B48F-1D18A9856A87
  last_name: Langer
- first_name: Nowras
  full_name: Rahhal, Nowras
  last_name: Rahhal
- first_name: Christoph
  full_name: Rademacher, Christoph
  last_name: Rademacher
- first_name: Robert
  full_name: Wawrzinek, Robert
  last_name: Wawrzinek
- first_name: Federica
  full_name: Quattrone, Federica
  last_name: Quattrone
- first_name: Florian
  full_name: Sparber, Florian
  last_name: Sparber
citation:
  ama: 'Klein K, Johnson L, Rîca R, et al. Langerhans cell–targeted mRNA delivery:
    A strategy for dose-sparing and enhanced antitumor immunity. <i>Journal of Investigative
    Dermatology</i>. doi:<a href="https://doi.org/10.1016/j.jid.2026.03.026">10.1016/j.jid.2026.03.026</a>'
  apa: 'Klein, K., Johnson, L., Rîca, R., Sarcevic, M., Carta, G., Seiser, S., … Sparber,
    F. (n.d.). Langerhans cell–targeted mRNA delivery: A strategy for dose-sparing
    and enhanced antitumor immunity. <i>Journal of Investigative Dermatology</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.jid.2026.03.026">https://doi.org/10.1016/j.jid.2026.03.026</a>'
  chicago: 'Klein, Klara, Litty Johnson, Ramona Rîca, Mirza Sarcevic, Gabriele Carta,
    Saskia Seiser, Adelheid Elbe-Bürger, et al. “Langerhans Cell–Targeted MRNA Delivery:
    A Strategy for Dose-Sparing and Enhanced Antitumor Immunity.” <i>Journal of Investigative
    Dermatology</i>. Elsevier, n.d. <a href="https://doi.org/10.1016/j.jid.2026.03.026">https://doi.org/10.1016/j.jid.2026.03.026</a>.'
  ieee: 'K. Klein <i>et al.</i>, “Langerhans cell–targeted mRNA delivery: A strategy
    for dose-sparing and enhanced antitumor immunity,” <i>Journal of Investigative
    Dermatology</i>. Elsevier.'
  ista: 'Klein K, Johnson L, Rîca R, Sarcevic M, Carta G, Seiser S, Elbe-Bürger A,
    Langer F, Rahhal N, Rademacher C, Wawrzinek R, Quattrone F, Sparber F. Langerhans
    cell–targeted mRNA delivery: A strategy for dose-sparing and enhanced antitumor
    immunity. Journal of Investigative Dermatology.'
  mla: 'Klein, Klara, et al. “Langerhans Cell–Targeted MRNA Delivery: A Strategy for
    Dose-Sparing and Enhanced Antitumor Immunity.” <i>Journal of Investigative Dermatology</i>,
    Elsevier, doi:<a href="https://doi.org/10.1016/j.jid.2026.03.026">10.1016/j.jid.2026.03.026</a>.'
  short: K. Klein, L. Johnson, R. Rîca, M. Sarcevic, G. Carta, S. Seiser, A. Elbe-Bürger,
    F. Langer, N. Rahhal, C. Rademacher, R. Wawrzinek, F. Quattrone, F. Sparber, Journal
    of Investigative Dermatology (n.d.).
date_created: 2026-05-10T22:02:16Z
date_published: 2026-04-07T00:00:00Z
date_updated: 2026-05-11T06:07:32Z
day: '07'
department:
- _id: PreCl
doi: 10.1016/j.jid.2026.03.026
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2025.06.25.661517
month: '04'
oa: 1
oa_version: Preprint
publication: Journal of Investigative Dermatology
publication_identifier:
  eissn:
  - 1523-1747
  issn:
  - 0022-202X
publication_status: inpress
publisher: Elsevier
scopus_import: '1'
status: public
title: 'Langerhans cell–targeted mRNA delivery: A strategy for dose-sparing and enhanced
  antitumor immunity'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21849'
abstract:
- lang: eng
  text: The development of complex tissues relies on the precise assignment of cell
    identity. At the molecular scale, this process depends on the deposition of epigenetic
    modifications—such as methylation—that are regulated by complex biochemical networks
    and occur at specific regions on the DNA and chromatin. Here we show that despite
    the complexity of epigenetic regulation, dynamical scaling and self-similarity
    of DNA methylation marks emerge in embryonic development. Drawing on single-cell
    multi-omics experiments, super-resolution microscopy and statistical physics,
    we demonstrate that these phenomena originate in dynamical feedback between DNA
    methylation and the formation of nanoscale dynamic chromatin aggregates. These
    nanoscale processes lead to genome-wide increase in DNA methylation marks following
    a power law and self-similar correlation functions. Using this framework, we identify
    methylation patterns that precede gene expression changes in embryonic symmetry
    breaking. Our work identifies linear sequencing measurements as a laboratory to
    study mesoscopic biophysical processes in vivo.
acknowledgement: We thank all members of the W.R. and S.R. laboratories, F. Piazza,
  B. D. Simons, and F. Jülicher for helpful discussions. We thank M. Ciarchi for providing
  annotations for the chromatin compartments. S.R. is a member of the Center for Nano
  Science (CeNS). This project has received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement number 950349). Research in W.R.’s laboratory was supported by
  the Biotechnology and Biological Sciences Research Council (BB/K010867/1), Wellcome
  (095645/Z/11/Z) and the European Research Council (ERC) under the European Union’s
  Horizon 2020 research and innovation programme (EpiCell lineage 882798). F.O. received
  funding from the European Union’s Horizon 2020 research and innovation programme
  under the Marie Skłodowska-Curie grant agreement number 101034413. Open access funding
  provided by Max Planck Society.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Fabrizio
  full_name: Olmeda, Fabrizio
  id: 69dbf5fb-8a76-11ed-866b-fb486d8b5689
  last_name: Olmeda
- first_name: Tim
  full_name: Lohoff, Tim
  last_name: Lohoff
- first_name: Ioannis
  full_name: Kafetzopoulos, Ioannis
  last_name: Kafetzopoulos
- first_name: Stephen J.
  full_name: Clark, Stephen J.
  last_name: Clark
- first_name: Laura
  full_name: Benson, Laura
  last_name: Benson
- first_name: Fatima
  full_name: Santos, Fatima
  last_name: Santos
- first_name: Felix
  full_name: Krueger, Felix
  last_name: Krueger
- first_name: Simon
  full_name: Walker, Simon
  last_name: Walker
- first_name: Wolf
  full_name: Reik, Wolf
  last_name: Reik
- first_name: Steffen
  full_name: Rulands, Steffen
  last_name: Rulands
citation:
  ama: Olmeda F, Lohoff T, Kafetzopoulos I, et al. Scaling and self-similarity in
    the formation of the embryonic epigenome. <i>Nature Physics</i>. 2026. doi:<a
    href="https://doi.org/10.1038/s41567-026-03263-x">10.1038/s41567-026-03263-x</a>
  apa: Olmeda, F., Lohoff, T., Kafetzopoulos, I., Clark, S. J., Benson, L., Santos,
    F., … Rulands, S. (2026). Scaling and self-similarity in the formation of the
    embryonic epigenome. <i>Nature Physics</i>. Springer Nature. <a href="https://doi.org/10.1038/s41567-026-03263-x">https://doi.org/10.1038/s41567-026-03263-x</a>
  chicago: Olmeda, Fabrizio, Tim Lohoff, Ioannis Kafetzopoulos, Stephen J. Clark,
    Laura Benson, Fatima Santos, Felix Krueger, Simon Walker, Wolf Reik, and Steffen
    Rulands. “Scaling and Self-Similarity in the Formation of the Embryonic Epigenome.”
    <i>Nature Physics</i>. Springer Nature, 2026. <a href="https://doi.org/10.1038/s41567-026-03263-x">https://doi.org/10.1038/s41567-026-03263-x</a>.
  ieee: F. Olmeda <i>et al.</i>, “Scaling and self-similarity in the formation of
    the embryonic epigenome,” <i>Nature Physics</i>. Springer Nature, 2026.
  ista: Olmeda F, Lohoff T, Kafetzopoulos I, Clark SJ, Benson L, Santos F, Krueger
    F, Walker S, Reik W, Rulands S. 2026. Scaling and self-similarity in the formation
    of the embryonic epigenome. Nature Physics.
  mla: Olmeda, Fabrizio, et al. “Scaling and Self-Similarity in the Formation of the
    Embryonic Epigenome.” <i>Nature Physics</i>, Springer Nature, 2026, doi:<a href="https://doi.org/10.1038/s41567-026-03263-x">10.1038/s41567-026-03263-x</a>.
  short: F. Olmeda, T. Lohoff, I. Kafetzopoulos, S.J. Clark, L. Benson, F. Santos,
    F. Krueger, S. Walker, W. Reik, S. Rulands, Nature Physics (2026).
date_created: 2026-05-10T22:02:16Z
date_published: 2026-04-29T00:00:00Z
date_updated: 2026-05-11T06:22:47Z
day: '29'
ddc:
- '570'
department:
- _id: EdHa
doi: 10.1038/s41567-026-03263-x
ec_funded: 1
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1038/s41567-026-03263-x
month: '04'
oa: 1
oa_version: Published Version
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
publication: Nature Physics
publication_identifier:
  eissn:
  - 1745-2481
  issn:
  - 1745-2473
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Scaling and self-similarity in the formation of the embryonic epigenome
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: publisher
_id: '21854'
abstract:
- lang: eng
  text: "As neural-network-based models grow both in size and popularity, interest
    has grown in making the models smaller and more efficient to train. To that end,
    many methods have been proposed to prune models by reducing their number of nonzero
    parameters. Additionally, parameter-efficient fine-tuning, in which a much smaller
    number of parameters than the total contained in the model is updated during training,
    has become very popular, especially in the space of Large Language Models. At
    the same time, the increasingly routine deployment of machine learning in real-world
    applications has spurred a drive to make them more trustworthy - in the sense
    of, among other things, being unbiased, interpretable, and editable. In this thesis,
    we examine the interplay between efficiency and trustworthiness.\r\n\r\nFirst,
    we analyze the effects of model pruning on bias in computer vision models, demonstrating
    that increased sparsity leads to greater bias, largely as a function of increased
    model uncertainty in marginal cases. Based on this observation, we propose several
    bias mitigation techniques. Then, we demonstrate that example-specific model pruning
    can improve model interpretation methods while improving pruning efficiency to
    make example-specific model pruning feasible in real time. Then, we investigate
    the effectiveness of parameter-efficient and data-efficient model personalization
    via fine-tuning, demonstrating that it is highly feasible with very small computational
    and data resources. Finally, we consider efficiency in editing model knowledge
    using a custom synthetic data framework, demonstrating that parameter-efficient,
    low-rank fine-tuning frequently outperforms full-rank fine-tuning, and, additionally,
    that restricting which model blocks are fine-tuned frequently improves results.
    Together, the results in this thesis provide new insights and techniques for combining
    trustworthiness and efficiency during neural network inference and training.\r\n\r\n-----------------“In
    reference to IEEE copyrighted material which is used with permission in this thesis,
    the IEEE does not endorse any of [name of university or educational entity]’s
    products or services. Internal or personal use of this material is permitted.
    If interested in reprinting/republishing IEEE copyrighted material for advertising
    or promotional purposes or for creating new collective works for resale or redistribution,
    please go to http://www.ieee.org/publications_standards/publications/rights/rights_link.html
    to learn how to obtain a License from RightsLink. If applicable, University Microfilms
    and/or ProQuest Library, or the Archives of Canada may supply single copies of
    the dissertation.”"
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "The research in this Ph.D. was funded in whole\r\nor in part by
  the Austrian Science Fund (FWF) W1260-N35 (Vienna Graduate School for\r\nComputational
  Optimization). For open access purposes the author has applied a CC BY\r\npublic
  copyright license to any author accepted manuscript version arising from this submission\r\nwherever
  possible. Additionally, I am grateful to Alois Schlögl, Waleed Khalid, and the rest
  of\r\nthe ISTA Scientific Computing team for building and maintaining the infrastructure
  I used\r\nto run experiments. I’m also deeply grateful to the Alistarh group’s administrative
  assistant,\r\nChristine Francois, who always deals with our nonsense with common
  sense and a smile.\r\n"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Eugenia B
  full_name: Iofinova, Eugenia B
  id: f9a17499-f6e0-11ea-865d-fdf9a3f77117
  last_name: Iofinova
  orcid: 0000-0002-7778-3221
citation:
  ama: Iofinova EB. On the utility and effects of efficiency in artificial neural
    networks. 2026. doi:<a href="https://doi.org/10.15479/AT-ISTA-21854">10.15479/AT-ISTA-21854</a>
  apa: Iofinova, E. B. (2026). <i>On the utility and effects of efficiency in artificial
    neural networks</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT-ISTA-21854">https://doi.org/10.15479/AT-ISTA-21854</a>
  chicago: Iofinova, Eugenia B. “On the Utility and Effects of Efficiency in Artificial
    Neural Networks.” Institute of Science and Technology Austria, 2026. <a href="https://doi.org/10.15479/AT-ISTA-21854">https://doi.org/10.15479/AT-ISTA-21854</a>.
  ieee: E. B. Iofinova, “On the utility and effects of efficiency in artificial neural
    networks,” Institute of Science and Technology Austria, 2026.
  ista: Iofinova EB. 2026. On the utility and effects of efficiency in artificial
    neural networks. Institute of Science and Technology Austria.
  mla: Iofinova, Eugenia B. <i>On the Utility and Effects of Efficiency in Artificial
    Neural Networks</i>. Institute of Science and Technology Austria, 2026, doi:<a
    href="https://doi.org/10.15479/AT-ISTA-21854">10.15479/AT-ISTA-21854</a>.
  short: E.B. Iofinova, On the Utility and Effects of Efficiency in Artificial Neural
    Networks, Institute of Science and Technology Austria, 2026.
corr_author: '1'
date_created: 2026-05-11T08:43:22Z
date_published: 2026-05-11T00:00:00Z
date_updated: 2026-05-19T11:20:28Z
day: '11'
ddc:
- '000'
degree_awarded: PhD
department:
- _id: GradSch
- _id: DaAl
doi: 10.15479/AT-ISTA-21854
file:
- access_level: closed
  checksum: 2e148dad920e3f9b7c32796e0ba2e5f7
  content_type: application/zip
  creator: eiofinov
  date_created: 2026-05-11T08:36:01Z
  date_updated: 2026-05-11T08:36:01Z
  file_id: '21856'
  file_name: EIofinova_thesis_FinalVersion.zip
  file_size: 28479571
  relation: source_file
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has_accepted_license: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '237'
project:
- _id: 9B9290DE-BA93-11EA-9121-9846C619BF3A
  grant_number: W1260-N35
  name: Vienna Graduate School on Computational Optimization
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '14771'
    relation: part_of_dissertation
    status: public
  - id: '18121'
    relation: part_of_dissertation
    status: public
  - id: '21858'
    relation: part_of_dissertation
    status: public
  - id: '21859'
    relation: part_of_dissertation
    status: public
  - id: '21857'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
title: On the utility and effects of efficiency in artificial neural networks
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
OA_place: publisher
OA_type: green
_id: '21857'
abstract:
- lang: eng
  text: "The availability of powerful open-source large language models (LLMs) opens
    exciting use cases, such as using personal data to fine-tune these models to imitate
    a user’s unique writing style. Two key requirements for this functionality are
    personalization–in the sense that the output should recognizably reflect the user’s
    own writing style—and privacy–users may justifiably be wary of uploading extremely
    personal data, such as their email archive, to a third-party service. In this
    paper, we demonstrate the feasibility of training and running such an assistant,
    which we call Panza, on commodity hardware, for the specific use case of email
    generation. Panza’s personalization features are based on a combination of parameter-efficient
    fine-tuning using a variant of the Reverse Instructions technique [1] and Retrieval-Augmented
    Generation (RAG) [2]. We demonstrate that this combination allows us to fine-tune
    an LLM to reflect a user’s writing style using limited data, while executing on
    extremely limited resources, e.g. on a free Google Colab instance. Our key methodological
    contribution is the first detailed study of evaluation metrics for this task,
    and\r\nof how different choices of system components–the use of RAG and of different
    fine-tuning approaches–impact the system’s performance. Additionally, we demonstrate
    that very little data - under 100 email samples - are sufficient to create models
    that convincingly imitate humans, showcasing a previously unknown attack vector
    in language models. We are releasing the full Panza code as well as three new
    email datasets licensed for research use."
article_number: '81'
article_processing_charge: No
author:
- first_name: Armand
  full_name: Nicolicioiu, Armand
  last_name: Nicolicioiu
- first_name: Eugenia B
  full_name: Iofinova, Eugenia B
  id: f9a17499-f6e0-11ea-865d-fdf9a3f77117
  last_name: Iofinova
  orcid: 0000-0002-7778-3221
- first_name: Andrej
  full_name: Jovanovic, Andrej
  last_name: Jovanovic
- first_name: Eldar
  full_name: Kurtic, Eldar
  id: 47beb3a5-07b5-11eb-9b87-b108ec578218
  last_name: Kurtic
- first_name: Mahdi
  full_name: Nikdan, Mahdi
  id: 66374281-f394-11eb-9cf6-869147deecc0
  last_name: Nikdan
- first_name: Andrei
  full_name: Panferov, Andrei
  id: 2c18daae-4dbe-11ef-8491-98ce2d960f09
  last_name: Panferov
- first_name: Ilia
  full_name: Markov, Ilia
  id: D0CF4148-C985-11E9-8066-0BDEE5697425
  last_name: Markov
- first_name: Nir
  full_name: Shavit, Nir
  last_name: Shavit
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
citation:
  ama: 'Nicolicioiu A, Iofinova EB, Jovanovic A, et al. <i>Panza: Investigating the
    Feasibility of Fully-Local Personalized Text Generation</i>. OpenReview; 2026.'
  apa: 'Nicolicioiu, A., Iofinova, E. B., Jovanovic, A., Kurtic, E., Nikdan, M., Panferov,
    A., … Alistarh, D.-A. (2026). <i>Panza: Investigating the feasibility of fully-local
    personalized text generation</i>. <i>Third Conference on Parsimony and Learning
    (Proceedings Track)</i>. Tübíngen, Germany: OpenReview.'
  chicago: 'Nicolicioiu, Armand, Eugenia B Iofinova, Andrej Jovanovic, Eldar Kurtic,
    Mahdi Nikdan, Andrei Panferov, Ilia Markov, Nir Shavit, and Dan-Adrian Alistarh.
    <i>Panza: Investigating the Feasibility of Fully-Local Personalized Text Generation</i>.
    <i>Third Conference on Parsimony and Learning (Proceedings Track)</i>. OpenReview,
    2026.'
  ieee: 'A. Nicolicioiu <i>et al.</i>, <i>Panza: Investigating the feasibility of
    fully-local personalized text generation</i>. OpenReview, 2026.'
  ista: 'Nicolicioiu A, Iofinova EB, Jovanovic A, Kurtic E, Nikdan M, Panferov A,
    Markov I, Shavit N, Alistarh D-A. 2026. Panza: Investigating the feasibility of
    fully-local personalized text generation, OpenReview,p.'
  mla: 'Nicolicioiu, Armand, et al. “Panza: Investigating the Feasibility of Fully-Local
    Personalized Text Generation.” <i>Third Conference on Parsimony and Learning (Proceedings
    Track)</i>, 81, OpenReview, 2026.'
  short: 'A. Nicolicioiu, E.B. Iofinova, A. Jovanovic, E. Kurtic, M. Nikdan, A. Panferov,
    I. Markov, N. Shavit, D.-A. Alistarh, Panza: Investigating the Feasibility of
    Fully-Local Personalized Text Generation, OpenReview, 2026.'
conference:
  end_date: 2026-03-26
  location: Tübíngen, Germany
  name: 'CPAL: Conference on Parsimony and Learning'
  start_date: 2026-03-23
corr_author: '1'
date_created: 2026-05-11T08:50:28Z
date_published: 2026-03-06T00:00:00Z
date_updated: 2026-05-19T11:20:27Z
day: '06'
department:
- _id: GradSch
- _id: DaAl
keyword:
- LLMs
- PEFT
- LoRA
- personalization
- efficient ML
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://openreview.net/pdf?id=soFWnTqd23
month: '03'
oa: 1
oa_version: Accepted Version
publication: Third Conference on Parsimony and Learning (Proceedings Track)
publication_status: published
publisher: OpenReview
quality_controlled: '1'
related_material:
  record:
  - id: '21854'
    relation: dissertation_contains
    status: public
status: public
title: 'Panza: Investigating the feasibility of fully-local personalized text generation'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference_poster
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21859'
abstract:
- lang: eng
  text: As artificial neural networks, and specifically large language models, have
    improved rapidly in capabilities and quality, they have increasingly been deployed
    in real-world applications, from customer service to Google search, despite the
    fact that they frequently make factually incorrect or undesirable statements.
    This trend has inspired practical and academic interest in model editing, that
    is, in adjusting the weights of the model to modify its likely outputs for queries
    relating to a specific fact or set of facts. This may be done either to amend
    a fact or set of facts, for instance, to fix a frequent error in the training
    data, or to suppress a fact or set of facts entirely, for instance, in case of
    dangerous knowledge. Multiple methods have been proposed to do such edits. However,
    at the same time, it has been shown that such model editing can be brittle and
    incomplete. Moreover the effectiveness of any model editing method necessarily
    depends on the data on which the model is trained, and, therefore, a good understanding
    of the interaction of the training data distribution and the way it is stored
    in the network is necessary and helpful to reliably perform model editing. However,
    working with large language models trained on real-world data does not allow us
    to understand this relationship or fully measure the effects of model editing.
    We therefore propose Behemoth, a fully synthetic data generation framework. To
    demonstrate the practical insights from the framework, we explore model editing
    in the context of simple tabular data, demonstrating surprising findings that,
    in some cases, echo real-world results, for instance, that in some cases restricting
    the update rank results in a more effective update.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "EI thanks Weiwei Yang, Janardhan Kulkani, and Kate Lytvynets for
  their advice and support in\r\ndeveloping an earlier version of the Behemoth library.
  This research was supported by the Scientific\r\nService Units (SSU) of IST Austria
  through resources provided by Scientific Computing (SciComp).\r\nEI was supported
  in part by the FWF DK VGSCO, grant agreement number W1260-N35.\r\n"
article_processing_charge: No
arxiv: 1
author:
- first_name: Eugenia B
  full_name: Iofinova, Eugenia B
  id: f9a17499-f6e0-11ea-865d-fdf9a3f77117
  last_name: Iofinova
  orcid: 0000-0002-7778-3221
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
citation:
  ama: 'Iofinova EB, Alistarh D-A. Behemoth: Benchmarking unlearning in LLMs using
    fully synthetic data. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2601.23153">10.48550/arXiv.2601.23153</a>'
  apa: 'Iofinova, E. B., &#38; Alistarh, D.-A. (n.d.). Behemoth: Benchmarking unlearning
    in LLMs using fully synthetic data. <i>arXiv</i>. <a href="https://doi.org/10.48550/arXiv.2601.23153">https://doi.org/10.48550/arXiv.2601.23153</a>'
  chicago: 'Iofinova, Eugenia B, and Dan-Adrian Alistarh. “Behemoth: Benchmarking
    Unlearning in LLMs Using Fully Synthetic Data.” <i>ArXiv</i>, n.d. <a href="https://doi.org/10.48550/arXiv.2601.23153">https://doi.org/10.48550/arXiv.2601.23153</a>.'
  ieee: 'E. B. Iofinova and D.-A. Alistarh, “Behemoth: Benchmarking unlearning in
    LLMs using fully synthetic data,” <i>arXiv</i>. .'
  ista: 'Iofinova EB, Alistarh D-A. Behemoth: Benchmarking unlearning in LLMs using
    fully synthetic data. arXiv, <a href="https://doi.org/10.48550/arXiv.2601.23153">10.48550/arXiv.2601.23153</a>.'
  mla: 'Iofinova, Eugenia B., and Dan-Adrian Alistarh. “Behemoth: Benchmarking Unlearning
    in LLMs Using Fully Synthetic Data.” <i>ArXiv</i>, doi:<a href="https://doi.org/10.48550/arXiv.2601.23153">10.48550/arXiv.2601.23153</a>.'
  short: E.B. Iofinova, D.-A. Alistarh, ArXiv (n.d.).
corr_author: '1'
date_created: 2026-05-11T08:58:07Z
date_published: 2026-01-30T00:00:00Z
date_updated: 2026-05-19T11:20:27Z
day: '30'
department:
- _id: GradSch
- _id: DaAl
doi: 10.48550/arXiv.2601.23153
external_id:
  arxiv:
  - '2601.23153'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2601.23153
month: '01'
oa: 1
oa_version: Preprint
project:
- _id: 9B9290DE-BA93-11EA-9121-9846C619BF3A
  grant_number: W1260-N35
  name: Vienna Graduate School on Computational Optimization
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '21854'
    relation: dissertation_contains
    status: public
status: public
title: 'Behemoth: Benchmarking unlearning in LLMs using fully synthetic data'
type: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21860'
abstract:
- lang: eng
  text: Glutamate excitotoxicity is a cell death mechanism triggered by accumulation
    of glutamate in the extracellular space. The α-ketoglutarate dehydrogenase complex
    (αKGDHC), an enzyme of the tricarboxylic acid cycle, represents a branching point
    controlling glutamate formation and its consumption as a fuel. Hence, modulation
    of the activity of αKGDHC might alter the amount of glutamate available for excitotoxic
    effects. To address this hypothesis, hippocampal neurons in primary co-culture
    with glial cells were exposed to zero-Mg2 buffer to elicit excitotoxicity through
    N-methyl-D-aspartic acid (NMDA) receptor disinhibition. Pretreatment of the cultures
    with succinyl phosphonate, to inhibit αKGDHC, enhanced excitotoxity, whereas promotion
    of αKGDHC activity by pretreatment with thiamine caused an opposite action. Moreover,
    NMDA receptor currents – but not those mediated by α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic
    acid (AMPA) receptors – were potentiated in neurons with impaired αKGDHC activity
    and diminished in neurons with boosted αKGDHC activity. The sensitization of NMDA
    receptors involved mGluR1 activation and was accompanied by enhanced neuronal
    discharge activity, elevated basal cytosolic Ca2+ levels, and augmented Ca2+ responses
    evoked by glutamate application. These results suggest that mGluR1-mediated potentiation
    of NMDA receptors contributes to a mechanism by which inhibition of αKGDHC might
    exacerbate glutamate excitotoxicity.
acknowledgement: The technical assistance by Tanja Wagner and Elena Lilliu is gratefully
  acknowledged. This research was funded in whole or in part by the Austrian Science
  Fund (FWF) (P36145 to H.K., PAT8605623 to M.H. and P33799 to A.V.K.]. Open Access
  funding provided by Medical University of Vienna and the Austrian Science Fund (FWF).
  Deposited in PMC for immediate release.
article_number: jcs264420
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Vanessa
  full_name: Goeschl, Vanessa
  last_name: Goeschl
- first_name: Matej
  full_name: Hotka, Matej
  last_name: Hotka
- first_name: Bernhard
  full_name: Hochreiter, Bernhard
  id: e6cab3de-17f6-11ed-9210-c1e42e045e9d
  last_name: Hochreiter
- first_name: Karlheinz
  full_name: Hilber, Karlheinz
  last_name: Hilber
- first_name: Stefan
  full_name: Boehm, Stefan
  last_name: Boehm
- first_name: Andrey V.
  full_name: Kozlov, Andrey V.
  last_name: Kozlov
- first_name: Helmut
  full_name: Kubista, Helmut
  last_name: Kubista
citation:
  ama: Goeschl V, Hotka M, Hochreiter B, et al. α-ketoglutarate dehydrogenase complex
    activity modulates glutamate excitotoxicity via metabotropic regulation of NMDA
    receptors in primary cultures. <i>Journal of Cell Science</i>. 2026;139(8). doi:<a
    href="https://doi.org/10.1242/jcs.264420">10.1242/jcs.264420</a>
  apa: Goeschl, V., Hotka, M., Hochreiter, B., Hilber, K., Boehm, S., Kozlov, A. V.,
    &#38; Kubista, H. (2026). α-ketoglutarate dehydrogenase complex activity modulates
    glutamate excitotoxicity via metabotropic regulation of NMDA receptors in primary
    cultures. <i>Journal of Cell Science</i>. The Company of Biologists. <a href="https://doi.org/10.1242/jcs.264420">https://doi.org/10.1242/jcs.264420</a>
  chicago: Goeschl, Vanessa, Matej Hotka, Bernhard Hochreiter, Karlheinz Hilber, Stefan
    Boehm, Andrey V. Kozlov, and Helmut Kubista. “α-Ketoglutarate Dehydrogenase Complex
    Activity Modulates Glutamate Excitotoxicity via Metabotropic Regulation of NMDA
    Receptors in Primary Cultures.” <i>Journal of Cell Science</i>. The Company of
    Biologists, 2026. <a href="https://doi.org/10.1242/jcs.264420">https://doi.org/10.1242/jcs.264420</a>.
  ieee: V. Goeschl <i>et al.</i>, “α-ketoglutarate dehydrogenase complex activity
    modulates glutamate excitotoxicity via metabotropic regulation of NMDA receptors
    in primary cultures,” <i>Journal of Cell Science</i>, vol. 139, no. 8. The Company
    of Biologists, 2026.
  ista: Goeschl V, Hotka M, Hochreiter B, Hilber K, Boehm S, Kozlov AV, Kubista H.
    2026. α-ketoglutarate dehydrogenase complex activity modulates glutamate excitotoxicity
    via metabotropic regulation of NMDA receptors in primary cultures. Journal of
    Cell Science. 139(8), jcs264420.
  mla: Goeschl, Vanessa, et al. “α-Ketoglutarate Dehydrogenase Complex Activity Modulates
    Glutamate Excitotoxicity via Metabotropic Regulation of NMDA Receptors in Primary
    Cultures.” <i>Journal of Cell Science</i>, vol. 139, no. 8, jcs264420, The Company
    of Biologists, 2026, doi:<a href="https://doi.org/10.1242/jcs.264420">10.1242/jcs.264420</a>.
  short: V. Goeschl, M. Hotka, B. Hochreiter, K. Hilber, S. Boehm, A.V. Kozlov, H.
    Kubista, Journal of Cell Science 139 (2026).
date_created: 2026-05-11T10:52:27Z
date_published: 2026-04-27T00:00:00Z
date_updated: 2026-05-12T06:40:18Z
day: '27'
ddc:
- '570'
department:
- _id: Bio
doi: 10.1242/jcs.264420
external_id:
  pmid:
  - '41834724'
file:
- access_level: open_access
  checksum: 8db35c97588c2f6ef88c7e8d5924cf8c
  content_type: application/pdf
  creator: dernst
  date_created: 2026-05-12T06:27:54Z
  date_updated: 2026-05-12T06:27:54Z
  file_id: '21861'
  file_name: 2026_JourCellScience_Goeschl.pdf
  file_size: 1957057
  relation: main_file
  success: 1
file_date_updated: 2026-05-12T06:27:54Z
has_accepted_license: '1'
intvolume: '       139'
issue: '8'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Cell Science
publication_identifier:
  eissn:
  - 1477-9137
  issn:
  - 0021-9533
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
scopus_import: '1'
status: public
title: α-ketoglutarate dehydrogenase complex activity modulates glutamate excitotoxicity
  via metabotropic regulation of NMDA receptors in primary cultures
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 139
year: '2026'
...
---
OA_place: publisher
_id: '21863'
abstract:
- lang: eng
  text: "Atoms and photons, two things so different but yet so alike. The former,
    the building block of matter, something we learn about in school and imagine it
    as some tiny marbles encircled by other tinier marbles. The latter, an electromagnetic
    wave, a light particle or an excitation of the electromagnetic field. Quantum
    mechanics tells us about the properties of these two entities. And even if it
    sounds, looks and writes counter-intuitive, it has proven right for over a century
    now.\r\n\r\nIn this work, I elaborate on how we tested the laws of quantum mechanics
    and how we used them learn more about the tiny building blocks of nature and the
    fields they use to talk to each other. The atoms we use, are artificial. Superconducting
    qubits, small electrical circuits with quantized energy levels behave like electrons
    that transition between different orbitals in an atom. One of the qubits' advantages,
    is also a big disadvantage. We design the circuits' energy levels and fabricate
    them in a cleanroom. This allows for arbitrary spaced energy levels but in contrast
    to real atoms, prevents two superconducting qubits from being alike. Still, this
    qubit platform is one of the frontrunners for future quantum computing technology
    and testing fundamental physics due to their scalability.\r\n\r\nWe interface
    superconducting qubits, which operate in the GHz regime, with microwave photons.
    We use 3D aluminum cavities as mediators between qubits and photons. The cavities
    allow for non-destructive readout of the qubit state, they shield the qubits from
    noise at the qubit frequency and they give us an easy way to frequency-tune these
    joint systems.\r\n\r\nWe need to operate superconducting qubits and their cavities
    at millikelvin temperatures in dilution refrigerators. At higher temperatures,
    superconductivity suffers and even worse, the environment is filled with thermal
    noise photons. This poses a fundamental limitation on the scalability of superconducting
    qubit devices. Also connecting multiple devices in different fridges does not
    work over room temperature links because the microwave photons used for this purpose
    will be covered in noise and the quantum information they carry, will be unusable.\r\n\r\nInfrared
    photons do not suffer from this noise problem since there are close to zero thermal
    noise photons at their frequencies at room temperature. We cannot simply interface
    superconducting devices with optical photons due their frequency mismatch and
    the destructive effect of optical photons on superconductors. Therefore, we use
    microwave-to-optics transducers that allow to convert microwave photons into optical
    ones and vice-versa. The transducers that we use are macroscopic electro-optic
    transducers using the Pockels effect in a disk-shaped Lithium Niobate whispering
    gallery mode resonator. By using a strong optical pump, photons from the two frequency
    domains experience a beam-splitter interaction and get converted from one to the
    other.\r\n\r\nWe measure the generated optical photons using elaborate optical
    setups, optical heterodyning and single photon detectors to gain knowledge about
    the qubit state or the converted microwave photons. Bridging the microwave and
    the optical world allows us to take advantage of both of their strengths but it
    also requires deep knowledge about both of their working principles.\r\n\r\nIn
    this work, we describe two experiments that our group conducted to showcase the
    opportunities that arise from interfacing superconducting qubits with optical
    photons but also the pitfalls, one may encounter on the way.\r\n\r\nIn the first
    experiment, we managed to all-optically read out a superconducting qubit. We show
    that the assignment fidelity, the probability that a measurement of the qubit
    state matches the prepared state, is close to equal for all-optical, microwave-to-optics
    and conventional microwave readout. We show T1 and T2 measurements for all three
    readout types and give an analysis of the noise caused by the optics. Finally,
    we show that the infrared light does not affect the qubit performance in a negative
    way but that the heating it causes does. This is an important insight that we
    used in the next experiment.\r\n\r\nThe second experiment is the upconversion
    of itinerant single microwave photons to the optical domain. We show that we can
    generate single microwave photons from a qubit-cavity system. We upconvert these
    single photons, measure them with a single photon detector and reconstruct their
    shape. By conducting a single photon Rabi measurement, we show correlations between
    the microwave and the optical domain. And by thorough signal-to-noise measurements
    and noise analysis, we find that we can generate single infrared photons with
    high signal-to-noise ratio 5.1 and low transducer added noise (<0.012 quanta).
    We show that this measurement creates a path towards entanglement of a superconducting
    qubit and an optical photon and what parameters need to be improved to achieve
    it. Additionally, this experiment is a proof of principle for an on-demand infrared
    single photon source. More generally, it allows to link microwave quantum technology
    in general to the optical domain."
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
- _id: LifeSc
- _id: SSU
acknowledgement: "The author of this work was supported by the European Research Council
  under grant no.\r\n101089099 (ERC CoG cQEO) and the European Union’s Horizon 2020
  research and innovation\r\nprogram under grant no. 899354 (FETopen SuperQuLAN).\r\nThis
  work was also supported by the European Research Council under grant nos. 758053\r\n(ERC
  StG QUNNECT), 101248662 (ERC POC CoupledEOT), and the European Innovation\r\nCouncil
  no. 101187231 (PathfinderOpen CIELO). This research was funded in whole or in part\r\nby
  the Austrian Science Fund (FWF) [10.55776/F71]. For open access purposes, the author\r\nhas
  applied a CC BY public copyright license to any author accepted manuscript version
  arising\r\nfrom this submission.\r\niii\r\nMy co-authors in the works mentioned
  later acknowledge generous support from the ISTFELLOW program, the NOMIS-ISTA fellowship,
  the Horizon Europe Program HORIZONCL4-2022-QUANTUM-01-SGA via Project No. 101113946
  OpenSuperQPlus100 and a DOC fellowship of the Austrian Academy of Sciences at IST
  Austria.\r\n"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Thomas
  full_name: Werner, Thomas
  id: 1fcd8497-dba3-11ea-a45e-c6fbd715f7c7
  last_name: Werner
  orcid: 0009-0001-2346-5236
citation:
  ama: Werner T. Interfacing superconducting qubits with optical photons. 2026. doi:<a
    href="https://doi.org/10.15479/AT-ISTA-21863">10.15479/AT-ISTA-21863</a>
  apa: Werner, T. (2026). <i>Interfacing superconducting qubits with optical photons</i>.
    Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT-ISTA-21863">https://doi.org/10.15479/AT-ISTA-21863</a>
  chicago: Werner, Thomas. “Interfacing Superconducting Qubits with Optical Photons.”
    Institute of Science and Technology Austria, 2026. <a href="https://doi.org/10.15479/AT-ISTA-21863">https://doi.org/10.15479/AT-ISTA-21863</a>.
  ieee: T. Werner, “Interfacing superconducting qubits with optical photons,” Institute
    of Science and Technology Austria, 2026.
  ista: Werner T. 2026. Interfacing superconducting qubits with optical photons. Institute
    of Science and Technology Austria.
  mla: Werner, Thomas. <i>Interfacing Superconducting Qubits with Optical Photons</i>.
    Institute of Science and Technology Austria, 2026, doi:<a href="https://doi.org/10.15479/AT-ISTA-21863">10.15479/AT-ISTA-21863</a>.
  short: T. Werner, Interfacing Superconducting Qubits with Optical Photons, Institute
    of Science and Technology Austria, 2026.
corr_author: '1'
date_created: 2026-05-12T09:04:02Z
date_published: 2026-05-12T00:00:00Z
date_updated: 2026-05-20T13:35:43Z
day: '12'
ddc:
- '530'
- '537'
- '539'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoFi
doi: 10.15479/AT-ISTA-21863
ec_funded: 1
file:
- access_level: open_access
  checksum: a5b4d8dba83f96e955a3625c0eebee98
  content_type: application/pdf
  creator: twerner
  date_created: 2026-05-15T15:53:57Z
  date_updated: 2026-05-15T15:53:57Z
  file_id: '21879'
  file_name: 2026_Werner_Thomas_Thesis.pdf
  file_size: 9330516
  relation: main_file
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  checksum: b41282beaacfb32472769b9e3b1758d8
  content_type: application/x-zip-compressed
  creator: twerner
  date_created: 2026-05-15T15:54:06Z
  date_updated: 2026-05-15T15:54:06Z
  file_id: '21880'
  file_name: 2026_Werner_Thomas_Thesis.zip
  file_size: 9370704
  relation: source_file
file_date_updated: 2026-05-15T15:54:06Z
has_accepted_license: '1'
keyword:
- Superconducting qubits
- Quantum optics
- Single photons and quantum effects
- Nonlinear optics
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '97'
project:
- _id: bdadfa0d-d553-11ed-ba76-fb85edbd456a
  grant_number: '101089099'
  name: 'Cavity Quantum Electro Optics: Microwave photonics with nonclassical states'
- _id: 9B868D20-BA93-11EA-9121-9846C619BF3A
  call_identifier: H2020
  grant_number: '899354'
  name: Quantum Local Area Networks with Superconducting Qubits
- _id: 26336814-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '758053'
  name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 5b807754-ab3d-11f0-914f-ff8c34502cc9
  grant_number: '101248662'
  name: Integrated optical coupling for low loss electro-optic interconnects
- _id: 91aaf765-16d5-11f0-9cad-a8e7e44cccb7
  grant_number: '101187231'
  name: 'Cavity-Integrated Electro-Optics: Measuring, Converting and Manipulating
    Microwaves with Light'
- _id: bdb108fd-d553-11ed-ba76-83dc74a9864f
  grant_number: F07105
  name: QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration
    of Superconducting Quantum Circuits
- _id: bdb7cfc1-d553-11ed-ba76-d2eaab167738
  grant_number: '101080139'
  name: Open Superconducting Quantum Computers (OpenSuperQPlus)
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
  name: NOMIS Fellowship Program
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '19073'
    relation: part_of_dissertation
    status: public
  - id: '21870'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
title: Interfacing superconducting qubits with optical photons
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21870'
abstract:
- lang: eng
  text: Superconducting qubits are a leading candidate for utility-scale quantum computing
    due to their fast gate speeds and steadily decreasing error rates. The requirement
    for millikelvin operating temperatures, however, creates a significant scaling
    bottleneck. Modular architectures using optical fiber links could bridge separate
    cryogenic nodes, but superconducting circuits do not have coherent optical transitions
    and microwave-to-optical conversion has not been shown for any non-classical photon
    state. In this work, we demonstrate the on-demand generation and tomographic reconstruction
    of itinerant single microwave photons at 8.9 GHz from a superconducting qubit.
    We upconvert this non-Gaussian state with a transducer added noise below 0.012
    quanta and count the converted telecom photons at 193.4 THz with a signal-to-noise
    ratio of up to 5.1$\pm$1.1. We characterize the trade-offs between throughput
    and noise, and establish a viable path toward heralded entanglement distribution
    and gate teleportation. Looking ahead, these results empower existing superconducting
    devices to take a key role in distributed quantum technologies and heterogeneous
    quantum systems.
acknowledgement: "We thank Fritz Diorico and Onur Hosten who suggested the filter
  cavity design, and gave important insights about the assembly and the testing of
  the FabryPerot filter cavities. Ekatrina Fedotova and Diego A.\r\nLancheros Naranjo
  worked on the filter cavity setup in\r\nthe early stages of this work. Gustavo Wiederhecker
  and\r\nYiewen Chu provided insights as to the origins of the\r\nobserved optical
  noise and Nicola Carlon Zambon suggested using telecom filters to mitigate it further.
  This\r\nwork was supported by the European Research Council under grant agreement
  no. 101089099 (ERC CoG\r\ncQEO), and 101248662 (ERC POC CoupledEOT), the\r\nEuropean
  Unions Horizon 2020 research and innovation\r\nprogram under grant agreement no.
  899354 (FETopen\r\nSuperQuLAN), the European Innovation Council no.\r\n101187231
  (PathfinderOpen CIELO), and the Austrian\r\nScience Fund (FWF) no. F7105 (SFB BeyondC).
  J.F.\r\nand L.K. acknowledge support from the Horizon Europe\r\nProgram HORIZON-CL4-2022-QUANTUM-01-SGA
  via\r\nProject No. 101113946 OpenSuperQPlus100. A.M. acknowledges support from the
  NOMIS-ISTA fellowship."
article_processing_charge: No
arxiv: 1
author:
- first_name: Thomas
  full_name: Werner, Thomas
  id: 1fcd8497-dba3-11ea-a45e-c6fbd715f7c7
  last_name: Werner
  orcid: 0009-0001-2346-5236
- first_name: Erfan
  full_name: Riyazi, Erfan
  id: 53322f94-5355-11ee-ae5a-ff6f81c87d51
  last_name: Riyazi
- first_name: Samarth
  full_name: Hawaldar, Samarth
  id: 221708e1-1ff6-11ee-9fa6-85146607433e
  last_name: Hawaldar
  orcid: 0000-0002-1965-4309
- first_name: Rishabh
  full_name: Sahu, Rishabh
  id: 47D26E34-F248-11E8-B48F-1D18A9856A87
  last_name: Sahu
  orcid: 0000-0001-6264-2162
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
  orcid: 0000-0003-1397-7876
- first_name: Paul Falthansl-Scheinecker
  full_name: Paul Falthansl-Scheinecker, Paul Falthansl-Scheinecker
  last_name: Paul Falthansl-Scheinecker
- first_name: Jennifer A. Sánchez
  full_name: Naranjo, Jennifer A. Sánchez
  last_name: Naranjo
- first_name: Dante
  full_name: Loi, Dante
  last_name: Loi
- first_name: Lucky N.
  full_name: Kapoor, Lucky N.
  last_name: Kapoor
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
  orcid: 0009-0005-0878-3032
- first_name: Liu
  full_name: Qiu, Liu
  id: 45e99c0d-1eb1-11eb-9b96-ed8ab2983cac
  last_name: Qiu
  orcid: 0000-0003-4345-4267
- first_name: Andrei
  full_name: Militaru, Andrei
  id: d67706f8-8eb1-11ee-ad1b-9c30dfa19e0b
  last_name: Militaru
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Werner T, Riyazi E, Hawaldar S, et al. Electro-optic conversion of itinerant
    Fock states. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2602.00928">10.48550/arXiv.2602.00928</a>
  apa: Werner, T., Riyazi, E., Hawaldar, S., Sahu, R., Arnold, G. M., Paul Falthansl-Scheinecker,
    P. F.-S., … Fink, J. M. (n.d.). Electro-optic conversion of itinerant Fock states.
    <i>arXiv</i>. <a href="https://doi.org/10.48550/arXiv.2602.00928">https://doi.org/10.48550/arXiv.2602.00928</a>
  chicago: Werner, Thomas, Erfan Riyazi, Samarth Hawaldar, Rishabh Sahu, Georg M Arnold,
    Paul Falthansl-Scheinecker Paul Falthansl-Scheinecker, Jennifer A. Sánchez Naranjo,
    et al. “Electro-Optic Conversion of Itinerant Fock States.” <i>ArXiv</i>, n.d.
    <a href="https://doi.org/10.48550/arXiv.2602.00928">https://doi.org/10.48550/arXiv.2602.00928</a>.
  ieee: T. Werner <i>et al.</i>, “Electro-optic conversion of itinerant Fock states,”
    <i>arXiv</i>. .
  ista: Werner T, Riyazi E, Hawaldar S, Sahu R, Arnold GM, Paul Falthansl-Scheinecker
    PF-S, Naranjo JAS, Loi D, Kapoor LN, Zemlicka M, Qiu L, Militaru A, Fink JM. Electro-optic
    conversion of itinerant Fock states. arXiv, <a href="https://doi.org/10.48550/arXiv.2602.00928">10.48550/arXiv.2602.00928</a>.
  mla: Werner, Thomas, et al. “Electro-Optic Conversion of Itinerant Fock States.”
    <i>ArXiv</i>, doi:<a href="https://doi.org/10.48550/arXiv.2602.00928">10.48550/arXiv.2602.00928</a>.
  short: T. Werner, E. Riyazi, S. Hawaldar, R. Sahu, G.M. Arnold, P.F.-S. Paul Falthansl-Scheinecker,
    J.A.S. Naranjo, D. Loi, L.N. Kapoor, M. Zemlicka, L. Qiu, A. Militaru, J.M. Fink,
    ArXiv (n.d.).
corr_author: '1'
date_created: 2026-05-12T13:58:18Z
date_published: 2026-01-31T00:00:00Z
date_updated: 2026-05-20T13:35:42Z
day: '31'
department:
- _id: JoFi
- _id: GradSch
doi: 10.48550/arXiv.2602.00928
ec_funded: 1
external_id:
  arxiv:
  - '2602.00928'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2602.00928
month: '01'
oa: 1
oa_version: Preprint
project:
- _id: bdadfa0d-d553-11ed-ba76-fb85edbd456a
  grant_number: '101089099'
  name: 'Cavity Quantum Electro Optics: Microwave photonics with nonclassical states'
- _id: 5b807754-ab3d-11f0-914f-ff8c34502cc9
  grant_number: '101248662'
  name: Integrated optical coupling for low loss electro-optic interconnects
- _id: 9B868D20-BA93-11EA-9121-9846C619BF3A
  call_identifier: H2020
  grant_number: '899354'
  name: Quantum Local Area Networks with Superconducting Qubits
- _id: 91aaf765-16d5-11f0-9cad-a8e7e44cccb7
  grant_number: '101187231'
  name: 'Cavity-Integrated Electro-Optics: Measuring, Converting and Manipulating
    Microwaves with Light'
- _id: 26927A52-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: F07105
  name: Integrating superconducting quantum circuits
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
  name: NOMIS Fellowship Program
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '21863'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Electro-optic conversion of itinerant Fock states
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21872'
abstract:
- lang: eng
  text: Magneto-optic Kerr effect (MOKE) is a powerful probe of broken time-reversal
    symmetry (T), typically used to study ferromagnets. While MOKE has been observed
    in some antiferromagnets (AFMs) with vanishing magnetization, it is often associated
    with structures whose symmetry is lower than basic collinear, bipartite order.
    In contrast, theory predicts a mechanism for MOKE intrinsic to all AFMs of A-type,
    i.e. layered AFMs in which ferromagnetic layers are antiferromagnetically aligned.
    Here we report the experimental confirmation of this mechanism in a bulk AFM.
    We achieve this by measuring the imaginary component of MOKE as a function of
    photon energy in MnBi2Te4, an A-type AFM where T is preserved in combination with
    a translation, and comparing the experimental results with model calculations.
    Our model suggests that observable MOKE should be expected in all collinear A-type
    AFMs with out-of-plane spin order, thus enabling optical detection of AFM domains
    and expanding the scope of MOKE to few-layer AFMs.
acknowledgement: We thank Christine Kuntscher for providing optical conductivity and
  reflectance data published in ref. 33, and Nicola Spaldin, Joel Moore and Bevin
  Huang for useful discussions. V.S. and J.O. received support from the Gordon and
  Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4537 awarded to J.O.
  at UC Berkeley. Experimental and theoretical work at LBNL and UC Berkeley was funded
  by the Quantum Materials (KC2202) program under the U.S. Department of Energy, Office
  of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering
  Division under Contract No. DE-AC02-05CH11231. Work at the University of Kansas
  was supported by the U.S. Department of Energy, Office of Science, Basic Energy
  Sciences, EPSCoR, and Materials Sciences and Engineering Division under Award No.
  DE-SC0025319. Parts of device fabrication were performed in the KU Nanofabrication
  Facility, which is supported by the National Institutes of Health NIGMS P30GM145499.
  Work at ORNL was supported by the U. S. Department of Energy, Office of Science,
  Basic Energy Sciences, Materials Sciences and Engineering Division. For the DFT
  calculations we used resources provided by the Swedish National Infrastructure for
  Computing (SNIC) at C3SE. We acknowledge support from the US National Science Foundation
  (NSF) Grant Number 2201516 under the Accelnet program of Office of International
  Science and Engineering (OISE). This publication is funded in part by a QuantEmX
  grant from ICAM and the Gordon and Betty Moore Foundation through Grant GBMF9616
  to S. K.
article_processing_charge: Yes
article_type: original
author:
- first_name: Veronika
  full_name: Sunko, Veronika
  id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
  last_name: Sunko
  orcid: 0000-0003-2724-3523
- first_name: Salman
  full_name: Ahsanullah, Salman
  last_name: Ahsanullah
- first_name: Vivek
  full_name: Jain, Vivek
  last_name: Jain
- first_name: Sophie
  full_name: Weber, Sophie
  last_name: Weber
- first_name: Sivaloganathan
  full_name: Kumaran, Sivaloganathan
  last_name: Kumaran
- first_name: Jiaqiang
  full_name: Yan, Jiaqiang
  last_name: Yan
- first_name: Joseph
  full_name: Orenstein, Joseph
  last_name: Orenstein
- first_name: Dmitry
  full_name: Ovchinnikov, Dmitry
  last_name: Ovchinnikov
citation:
  ama: Sunko V, Ahsanullah S, Jain V, et al. Magneto-optical Kerr effect in an A-type
    antiferromagnet. <i>Nature Communications</i>. 2026. doi:<a href="https://doi.org/10.1038/s41467-026-72577-4">10.1038/s41467-026-72577-4</a>
  apa: Sunko, V., Ahsanullah, S., Jain, V., Weber, S., Kumaran, S., Yan, J., … Ovchinnikov,
    D. (2026). Magneto-optical Kerr effect in an A-type antiferromagnet. <i>Nature
    Communications</i>. Springer Nature. <a href="https://doi.org/10.1038/s41467-026-72577-4">https://doi.org/10.1038/s41467-026-72577-4</a>
  chicago: Sunko, Veronika, Salman Ahsanullah, Vivek Jain, Sophie Weber, Sivaloganathan
    Kumaran, Jiaqiang Yan, Joseph Orenstein, and Dmitry Ovchinnikov. “Magneto-Optical
    Kerr Effect in an A-Type Antiferromagnet.” <i>Nature Communications</i>. Springer
    Nature, 2026. <a href="https://doi.org/10.1038/s41467-026-72577-4">https://doi.org/10.1038/s41467-026-72577-4</a>.
  ieee: V. Sunko <i>et al.</i>, “Magneto-optical Kerr effect in an A-type antiferromagnet,”
    <i>Nature Communications</i>. Springer Nature, 2026.
  ista: Sunko V, Ahsanullah S, Jain V, Weber S, Kumaran S, Yan J, Orenstein J, Ovchinnikov
    D. 2026. Magneto-optical Kerr effect in an A-type antiferromagnet. Nature Communications.
  mla: Sunko, Veronika, et al. “Magneto-Optical Kerr Effect in an A-Type Antiferromagnet.”
    <i>Nature Communications</i>, Springer Nature, 2026, doi:<a href="https://doi.org/10.1038/s41467-026-72577-4">10.1038/s41467-026-72577-4</a>.
  short: V. Sunko, S. Ahsanullah, V. Jain, S. Weber, S. Kumaran, J. Yan, J. Orenstein,
    D. Ovchinnikov, Nature Communications (2026).
corr_author: '1'
date_created: 2026-05-12T21:31:27Z
date_published: 2026-05-12T00:00:00Z
date_updated: 2026-06-10T09:45:53Z
day: '12'
ddc:
- '530'
department:
- _id: VeSu
doi: 10.1038/s41467-026-72577-4
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1038/s41467-026-72577-4
month: '05'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
  eissn:
  - 2041-1723
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '21422'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Magneto-optical Kerr effect in an A-type antiferromagnet
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21881'
abstract:
- lang: eng
  text: "I review recent contributions on nonlinear Dirichlet forms. Then, I specialise
    to the case of 2-\r\nhomogeneous and local forms. Inspired by the theory of Finsler
    manifolds and metric measure spaces, I establish new properties of such nonlinear
    Dirichlet forms, which are reminiscent of differential calculus formulae."
acknowledgement: I am thankful to G. Savaré, for introducing me to the study of nonlinear
  Dirichlet forms and metric measure spaces, and to D. Manini for stimulating discussions.
  Open access funding provided by Institute of Science and Technology (IST Austria).
  The author has been funded by the European Union’s Horizon 2020 research and innovation
  program under the Marie Skłodowska-Curie grant agreement No 754362. Partial support
  has been obtained from the EFI ANR-17-CE40-0030 Project of the French National Research
  Agency.
article_number: '33'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Giovanni
  full_name: Brigati, Giovanni
  id: 63ff57e8-1fbb-11ee-88f2-f558ffc59cf1
  last_name: Brigati
citation:
  ama: Brigati G. Nonlinear Dirichlet forms, energy spaces, and calculus rules. <i>La
    Matematica</i>. 2026;5(2). doi:<a href="https://doi.org/10.1007/s44007-026-00217-w">10.1007/s44007-026-00217-w</a>
  apa: Brigati, G. (2026). Nonlinear Dirichlet forms, energy spaces, and calculus
    rules. <i>La Matematica</i>. Springer Nature. <a href="https://doi.org/10.1007/s44007-026-00217-w">https://doi.org/10.1007/s44007-026-00217-w</a>
  chicago: Brigati, Giovanni. “Nonlinear Dirichlet Forms, Energy Spaces, and Calculus
    Rules.” <i>La Matematica</i>. Springer Nature, 2026. <a href="https://doi.org/10.1007/s44007-026-00217-w">https://doi.org/10.1007/s44007-026-00217-w</a>.
  ieee: G. Brigati, “Nonlinear Dirichlet forms, energy spaces, and calculus rules,”
    <i>La Matematica</i>, vol. 5, no. 2. Springer Nature, 2026.
  ista: Brigati G. 2026. Nonlinear Dirichlet forms, energy spaces, and calculus rules.
    La Matematica. 5(2), 33.
  mla: Brigati, Giovanni. “Nonlinear Dirichlet Forms, Energy Spaces, and Calculus
    Rules.” <i>La Matematica</i>, vol. 5, no. 2, 33, Springer Nature, 2026, doi:<a
    href="https://doi.org/10.1007/s44007-026-00217-w">10.1007/s44007-026-00217-w</a>.
  short: G. Brigati, La Matematica 5 (2026).
corr_author: '1'
date_created: 2026-05-17T22:02:10Z
date_published: 2026-04-29T00:00:00Z
date_updated: 2026-05-18T08:27:08Z
day: '29'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1007/s44007-026-00217-w
external_id:
  arxiv:
  - '2309.00377'
file:
- access_level: open_access
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has_accepted_license: '1'
intvolume: '         5'
issue: '2'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
publication: La Matematica
publication_identifier:
  eissn:
  - 2730-9657
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nonlinear Dirichlet forms, energy spaces, and calculus rules
tmp:
  image: /images/cc_by.png
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  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21882'
abstract:
- lang: eng
  text: The nature of little red dots (LRDs) has largely been investigated through
    their continuum emission, with lines assumed to arise from a broad-line region.
    In this paper, we instead use recombination lines to infer the intrinsic properties
    of the central engine. Our analysis first reveals a tension between the ionizing
    properties implied from Hα and He ii λ4686. The high Hα EWs require copious H-ionizing
    photons, more than the bluest active galactic nucleus (AGN) ionizing spectra can
    provide. In contrast, He ii emission is marginally detected, and its low EW is,
    at most, consistent with the softest AGN spectra. The low He ii/Hβ (∼10−2, <20×  local
    AGN median) further points to an unusually soft ionizing spectrum. We extend our
    analysis to dense gas envelopes (quasi-star/black-hole star) and find that hydrogen
    recombination lines become optically thick and lose diagnostic power, but He ii
    remains optically thin and a robust tracer. Photoionization modeling with Cloudy
    rules out standard AGN accretion disk spectra. Alternative explanations include
    exotic AGN with red rest-optical emission, high average optical depth (>10) from
    gas/dust, and soft ionizing spectra with abundant H-ionizing photons, consistent
    with, e.g., a cold accretion disk or a composite of AGN and stars. The latter
    is an intriguing scenario since high hydrogen densities are highly conducive for
    star formation, and nuclear star clusters are found in the vicinity of local massive
    black holes. While previous studies have mostly focused on features dominated
    by the absorbing hydrogen cloud, the He ii-based diagnostic proposed here represents
    a crucial step toward understanding the central engine of LRDs.
acknowledgement: "B.W. thanks Michael Eracleous for valuable discussions. B.W. and
  J.L. acknowledge support from JWST-GO-04233.009. B.W. also acknowledges support
  provided by NASA through Hubble Fellowship grant HST-HF2-51592.001 awarded by the
  Space Telescope Science Institute, which is operated by the Association of Universities
  for Research in Astronomy, Inc., for NASA, under the contract NAS 5-26555. K.I.
  acknowledges support from the National Natural Science Foundation of China (12573015,
  W2532003), the Beijing Natural Science Foundation (IS25003), and the China Manned
  Space Program (CMS-CSST-2025-A09). R.E.H. acknowledges support by the German Aerospace
  Center (DLR) and the Federal Ministry for Economic Affairs and Energy (BMWi) through
  program 50OR2403 “RUBIES.”\r\n\r\nThis work is based on observations made with the
  NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski
  Archive for Space Telescopes at the Space Telescope Science Institute, which is
  operated by the Association of Universities for Research in Astronomy, Inc., under
  NASA contract NAS 5-03127 for JWST. These observations are associated with program
  # 1433, 2561, 4106, 4233, 5224, 6585. The specific observations analyzed can be
  accessed via DOI: 10.17909/9hpc-nc45. Computations for this research were performed
  on the Pennsylvania State University’s Institute for Computational and Data Sciences’
  Roar supercomputer; and on computational resources managed and supported by Princeton
  Research Computing, a consortium of groups including the Princeton Institute for
  Computational Science and Engineering (PICSciE) and Research Computing at Princeton
  University. Some of the stellar spectra are retrieved from the POLLUX database (pollux.oreme.org)
  operated at LUPM (Université de Montpellier—CNRS, France) with the support of the
  PNPS and INSU. This publication made use of the NASA Astrophysical Data System for
  bibliographic information."
article_number: '10'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Bingjie
  full_name: Wang, Bingjie
  last_name: Wang
- first_name: Joel
  full_name: Leja, Joel
  last_name: Leja
- first_name: Harley
  full_name: Katz, Harley
  last_name: Katz
- first_name: Kohei
  full_name: Inayoshi, Kohei
  last_name: Inayoshi
- first_name: Nikko J.
  full_name: Cleri, Nikko J.
  last_name: Cleri
- first_name: Anna
  full_name: De Graaff, Anna
  last_name: De Graaff
- first_name: Raphael E.
  full_name: Hviding, Raphael E.
  last_name: Hviding
- first_name: Pieter
  full_name: Van Dokkum, Pieter
  last_name: Van Dokkum
- first_name: Jenny E.
  full_name: Greene, Jenny E.
  last_name: Greene
- first_name: Ivo
  full_name: Labbé, Ivo
  last_name: Labbé
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: Ian
  full_name: Mcconachie, Ian
  last_name: Mcconachie
- first_name: Rohan P.
  full_name: Naidu, Rohan P.
  last_name: Naidu
- first_name: Erica J.
  full_name: Nelson, Erica J.
  last_name: Nelson
citation:
  ama: 'Wang B, Leja J, Katz H, et al. The missing hard photons of Little Red Dots:
    Their incident ionizing spectra resemble massive stars. <i>The Astrophysical Journal</i>.
    2026;1003(1). doi:<a href="https://doi.org/10.3847/1538-4357/ae5bab">10.3847/1538-4357/ae5bab</a>'
  apa: 'Wang, B., Leja, J., Katz, H., Inayoshi, K., Cleri, N. J., De Graaff, A., …
    Nelson, E. J. (2026). The missing hard photons of Little Red Dots: Their incident
    ionizing spectra resemble massive stars. <i>The Astrophysical Journal</i>. IOP
    Publishing. <a href="https://doi.org/10.3847/1538-4357/ae5bab">https://doi.org/10.3847/1538-4357/ae5bab</a>'
  chicago: 'Wang, Bingjie, Joel Leja, Harley Katz, Kohei Inayoshi, Nikko J. Cleri,
    Anna De Graaff, Raphael E. Hviding, et al. “The Missing Hard Photons of Little
    Red Dots: Their Incident Ionizing Spectra Resemble Massive Stars.” <i>The Astrophysical
    Journal</i>. IOP Publishing, 2026. <a href="https://doi.org/10.3847/1538-4357/ae5bab">https://doi.org/10.3847/1538-4357/ae5bab</a>.'
  ieee: 'B. Wang <i>et al.</i>, “The missing hard photons of Little Red Dots: Their
    incident ionizing spectra resemble massive stars,” <i>The Astrophysical Journal</i>,
    vol. 1003, no. 1. IOP Publishing, 2026.'
  ista: 'Wang B, Leja J, Katz H, Inayoshi K, Cleri NJ, De Graaff A, Hviding RE, Van
    Dokkum P, Greene JE, Labbé I, Matthee JJ, Mcconachie I, Naidu RP, Nelson EJ. 2026.
    The missing hard photons of Little Red Dots: Their incident ionizing spectra resemble
    massive stars. The Astrophysical Journal. 1003(1), 10.'
  mla: 'Wang, Bingjie, et al. “The Missing Hard Photons of Little Red Dots: Their
    Incident Ionizing Spectra Resemble Massive Stars.” <i>The Astrophysical Journal</i>,
    vol. 1003, no. 1, 10, IOP Publishing, 2026, doi:<a href="https://doi.org/10.3847/1538-4357/ae5bab">10.3847/1538-4357/ae5bab</a>.'
  short: B. Wang, J. Leja, H. Katz, K. Inayoshi, N.J. Cleri, A. De Graaff, R.E. Hviding,
    P. Van Dokkum, J.E. Greene, I. Labbé, J.J. Matthee, I. Mcconachie, R.P. Naidu,
    E.J. Nelson, The Astrophysical Journal 1003 (2026).
date_created: 2026-05-17T22:02:10Z
date_published: 2026-05-01T00:00:00Z
date_updated: 2026-05-18T08:18:39Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.3847/1538-4357/ae5bab
external_id:
  arxiv:
  - '2508.18358'
file:
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  creator: dernst
  date_created: 2026-05-18T08:17:26Z
  date_updated: 2026-05-18T08:17:26Z
  file_id: '21891'
  file_name: 2026_AstrophysicalJourn_Wang.pdf
  file_size: 2584417
  relation: main_file
  success: 1
file_date_updated: 2026-05-18T08:17:26Z
has_accepted_license: '1'
intvolume: '      1003'
issue: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
  eissn:
  - 1538-4357
  issn:
  - 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The missing hard photons of Little Red Dots: Their incident ionizing spectra
  resemble massive stars'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1003
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21883'
abstract:
- lang: eng
  text: Three-dimensional (3D) printing has rapidly developed from a niche hobbyist
    activity into a widely accessible and indispensable technology across multiple
    scientific disciplines. Within microscopy, optical engineering laboratories and
    imaging core facilities, 3D printing enables creating customised solutions for
    sample holders, optical components and everyday laboratory tools that traditionally
    required specialised machining. By providing rapid prototyping, low-cost production
    and reproducibility, 3D printing facilitates innovation and efficiency in facility
    operations. This article provides a perspective on the possibilities, challenges,
    and practical aspects of implementing 3D printing within microscopy core facilities.
    Instead of providing technical review about 3D printing, we focus on service organisation,
    user engagement, resource management and community-driven repositories for design
    dissemination. Our aim is to share insights with those considering the implementation
    of 3D printing as a service for developing add-on components to ease the operation
    of different aspects of the machine-park driven services and those who are managing
    advanced instrumentation within research groups.
acknowledged_ssus:
- _id: Bio
- _id: M-Shop
acknowledgement: "This work was supported by the Scientific Service Units (SSU) of
  Institute of Science and Technology Austria (ISTA) through resources provided by
  the Imaging & Optics Facility (IOF) and the MiBa Machine Shop. Specifically; Robert
  Hauschild (IOF), sharing designs, insights and pioneering 3D printing activities
  at the Imaging and Optics Facility; Bernhard Hochreiter (IOF), for support and testing
  of anoxic chamber. We also thank Ana Rita Carvalho Faria and Oliver Biehlmaier (Biozentrum
  University of Basel, Imaging Core Facility) for sharing the design of the adopted
  power meter.\r\nOpen Access funding provided by Institute of Science and Technology
  Austria."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Mohammad
  full_name: Goudarzi, Mohammad
  id: 3384113A-F248-11E8-B48F-1D18A9856A87
  last_name: Goudarzi
- first_name: Maximilian
  full_name: Schuster, Maximilian
  id: 37e65def-d415-11eb-ae59-a7b67be103db
  last_name: Schuster
- first_name: Arthur
  full_name: Milberger, Arthur
  last_name: Milberger
- first_name: Manuel
  full_name: Gunkel, Manuel
  last_name: Gunkel
- first_name: Stefan
  full_name: Terjung, Stefan
  last_name: Terjung
- first_name: Gabriel
  full_name: Krens, Gabriel
  id: 2B819732-F248-11E8-B48F-1D18A9856A87
  last_name: Krens
  orcid: 0000-0003-4761-5996
citation:
  ama: Goudarzi M, Schuster M, Milberger A, Gunkel M, Terjung S, Krens G. 3D printing
    in core facilities – Low pain, high gain. <i>Journal of Microscopy</i>. 2026.
    doi:<a href="https://doi.org/10.1111/jmi.70106">10.1111/jmi.70106</a>
  apa: Goudarzi, M., Schuster, M., Milberger, A., Gunkel, M., Terjung, S., &#38; Krens,
    G. (2026). 3D printing in core facilities – Low pain, high gain. <i>Journal of
    Microscopy</i>. Wiley. <a href="https://doi.org/10.1111/jmi.70106">https://doi.org/10.1111/jmi.70106</a>
  chicago: Goudarzi, Mohammad, Maximilian Schuster, Arthur Milberger, Manuel Gunkel,
    Stefan Terjung, and Gabriel Krens. “3D Printing in Core Facilities – Low Pain,
    High Gain.” <i>Journal of Microscopy</i>. Wiley, 2026. <a href="https://doi.org/10.1111/jmi.70106">https://doi.org/10.1111/jmi.70106</a>.
  ieee: M. Goudarzi, M. Schuster, A. Milberger, M. Gunkel, S. Terjung, and G. Krens,
    “3D printing in core facilities – Low pain, high gain,” <i>Journal of Microscopy</i>.
    Wiley, 2026.
  ista: Goudarzi M, Schuster M, Milberger A, Gunkel M, Terjung S, Krens G. 2026. 3D
    printing in core facilities – Low pain, high gain. Journal of Microscopy.
  mla: Goudarzi, Mohammad, et al. “3D Printing in Core Facilities – Low Pain, High
    Gain.” <i>Journal of Microscopy</i>, Wiley, 2026, doi:<a href="https://doi.org/10.1111/jmi.70106">10.1111/jmi.70106</a>.
  short: M. Goudarzi, M. Schuster, A. Milberger, M. Gunkel, S. Terjung, G. Krens,
    Journal of Microscopy (2026).
corr_author: '1'
date_created: 2026-05-17T22:02:11Z
date_published: 2026-05-09T00:00:00Z
date_updated: 2026-05-18T08:55:42Z
day: '09'
ddc:
- '600'
department:
- _id: Bio
doi: 10.1111/jmi.70106
external_id:
  pmid:
  - '42104760'
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1111/jmi.70106
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Microscopy
publication_identifier:
  eissn:
  - 1365-2818
  issn:
  - 0022-2720
publication_status: epub_ahead
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 3D printing in core facilities – Low pain, high gain
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '21884'
abstract:
- lang: eng
  text: "We show that a randomly perturbed digraph, where we start with a dense digraph
    Dα and add a small number of random edges to it, will typically contain a fixed
    orientation of a bounded-degree spanning tree. This answers a question posed by
    Araujo, Balogh, Krueger, Piga and Treglown and generalizes the corresponding result
    for randomly perturbed graphs by Krivelevich, Kwan and Sudakov. More specifically,
    we prove that there exists a constant c=c(α,Δ) such that if \r\nT is an oriented
    tree with maximum degree Δ and Dα is an n-vertex digraph with minimum semidegree
    αn, then the graph obtained by adding cn uniformly random edges to Dα will contain
    T with high probability."
acknowledgement: "We thank the anonymous referees for many helpful comments on an
  earlier version of this\r\narticle. Kalina Petrova was supported by grant no. CRSII5
  173721 of the Swiss National\r\nScience Foundation, and by the European Union’s
  Horizon 2020 research and innovation\r\nprogramme under the Marie Sk lodowska-Curie
  grant agreement No. 101034413"
article_number: P2.24
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Patryk
  full_name: Morawski, Patryk
  last_name: Morawski
- first_name: Kalina H
  full_name: Petrova, Kalina H
  id: 554ff4e4-f325-11ee-b0c4-a10dbd523381
  last_name: Petrova
citation:
  ama: Morawski P, Petrova KH. Randomly perturbed digraphs also have bounded-degree
    spanning trees. <i>Electronic Journal of Combinatorics</i>. 2026;33(2). doi:<a
    href="https://doi.org/10.37236/13316">10.37236/13316</a>
  apa: Morawski, P., &#38; Petrova, K. H. (2026). Randomly perturbed digraphs also
    have bounded-degree spanning trees. <i>Electronic Journal of Combinatorics</i>.
    Electronic Journal of Combinatorics. <a href="https://doi.org/10.37236/13316">https://doi.org/10.37236/13316</a>
  chicago: Morawski, Patryk, and Kalina H Petrova. “Randomly Perturbed Digraphs Also
    Have Bounded-Degree Spanning Trees.” <i>Electronic Journal of Combinatorics</i>.
    Electronic Journal of Combinatorics, 2026. <a href="https://doi.org/10.37236/13316">https://doi.org/10.37236/13316</a>.
  ieee: P. Morawski and K. H. Petrova, “Randomly perturbed digraphs also have bounded-degree
    spanning trees,” <i>Electronic Journal of Combinatorics</i>, vol. 33, no. 2. Electronic
    Journal of Combinatorics, 2026.
  ista: Morawski P, Petrova KH. 2026. Randomly perturbed digraphs also have bounded-degree
    spanning trees. Electronic Journal of Combinatorics. 33(2), P2.24.
  mla: Morawski, Patryk, and Kalina H. Petrova. “Randomly Perturbed Digraphs Also
    Have Bounded-Degree Spanning Trees.” <i>Electronic Journal of Combinatorics</i>,
    vol. 33, no. 2, P2.24, Electronic Journal of Combinatorics, 2026, doi:<a href="https://doi.org/10.37236/13316">10.37236/13316</a>.
  short: P. Morawski, K.H. Petrova, Electronic Journal of Combinatorics 33 (2026).
corr_author: '1'
date_created: 2026-05-17T22:02:11Z
date_published: 2026-05-08T00:00:00Z
date_updated: 2026-05-18T08:50:18Z
day: '08'
ddc:
- '510'
department:
- _id: MaKw
doi: 10.37236/13316
ec_funded: 1
external_id:
  arxiv:
  - '2306.14648'
file:
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  creator: dernst
  date_created: 2026-05-18T08:46:26Z
  date_updated: 2026-05-18T08:46:26Z
  file_id: '21893'
  file_name: 2026_ElectrJournCombinatorics_Morawski.pdf
  file_size: 399969
  relation: main_file
  success: 1
file_date_updated: 2026-05-18T08:46:26Z
has_accepted_license: '1'
intvolume: '        33'
issue: '2'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nd/4.0/
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
publication: Electronic Journal of Combinatorics
publication_identifier:
  eissn:
  - 1077-8926
publication_status: published
publisher: Electronic Journal of Combinatorics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Randomly perturbed digraphs also have bounded-degree spanning trees
tmp:
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  legal_code_url: https://creativecommons.org/licenses/by-nd/4.0/legalcode
  name: Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)
  short: CC BY-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2026'
...
