---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21149'
abstract:
- lang: eng
text: We present a general theoretical framework for helical dichroism (HD), establishing
an explicit link between chiral resolution and orbital angular momentum (OAM)
exchange in light–matter interaction. Tracing microscopic mechanisms of the OAM
transfer, we derive rotational selection rules, which establish that HD emerges
only from the spin–orbit coupling of light, even for beams without the far-field
OAM. Our findings refine the conditions for observing HD, provide a tool to re-examine
the outcome of prior experiments, and guide future designs for chiral sensing
with structured light.
acknowledgement: This research was funded in whole or in part by the Austrian Science
Fund (FWF) [10.55776/F1004].
article_number: '053204'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Mateja
full_name: Hrast, Mateja
id: 48dbb294-2a9c-11ef-905d-f56be71f0e5d
last_name: Hrast
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: Mikhail
full_name: Maslov, Mikhail
id: 2E65BB0E-F248-11E8-B48F-1D18A9856A87
last_name: Maslov
orcid: 0000-0003-4074-2570
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Hrast M, Koutentakis G, Maslov M, Lemeshko M. Bottom-up analysis of rovibrational
helical dichroism. Physical Review Letters. 2026;136(5). doi:10.1103/fkf1-1jml
apa: Hrast, M., Koutentakis, G., Maslov, M., & Lemeshko, M. (2026). Bottom-up
analysis of rovibrational helical dichroism. Physical Review Letters. American
Physical Society. https://doi.org/10.1103/fkf1-1jml
chicago: Hrast, Mateja, Georgios Koutentakis, Mikhail Maslov, and Mikhail Lemeshko.
“Bottom-up Analysis of Rovibrational Helical Dichroism.” Physical Review Letters.
American Physical Society, 2026. https://doi.org/10.1103/fkf1-1jml.
ieee: M. Hrast, G. Koutentakis, M. Maslov, and M. Lemeshko, “Bottom-up analysis
of rovibrational helical dichroism,” Physical Review Letters, vol. 136,
no. 5. American Physical Society, 2026.
ista: Hrast M, Koutentakis G, Maslov M, Lemeshko M. 2026. Bottom-up analysis of
rovibrational helical dichroism. Physical Review Letters. 136(5), 053204.
mla: Hrast, Mateja, et al. “Bottom-up Analysis of Rovibrational Helical Dichroism.”
Physical Review Letters, vol. 136, no. 5, 053204, American Physical Society,
2026, doi:10.1103/fkf1-1jml.
short: M. Hrast, G. Koutentakis, M. Maslov, M. Lemeshko, Physical Review Letters
136 (2026).
corr_author: '1'
date_created: 2026-02-06T10:53:17Z
date_published: 2026-02-05T00:00:00Z
date_updated: 2026-02-10T11:30:37Z
day: '05'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/fkf1-1jml
external_id:
arxiv:
- '2505.16393'
file:
- access_level: open_access
checksum: 805c929fff9fd4d0e733293eaace67b8
content_type: application/pdf
creator: dernst
date_created: 2026-02-10T11:25:46Z
date_updated: 2026-02-10T11:25:46Z
file_id: '21210'
file_name: 2026_PhysicalReviewLetters_Hrast.pdf
file_size: 511312
relation: main_file
success: 1
file_date_updated: 2026-02-10T11:25:46Z
has_accepted_license: '1'
intvolume: ' 136'
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: 7c040762-9f16-11ee-852c-dd79eeee4ab3
grant_number: F100403
name: Coherent Optical Metrology Beyond Electric-Dipole-Allowed Transitions
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Bottom-up analysis of rovibrational helical dichroism
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: 136
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21273'
abstract:
- lang: eng
text: In this paper we examine how porosity fluctuations affect the hydrodynamic
permeability of a porous matrix or membrane. We introduce a fluctuating Darcy
model, which couples the Navier-Stokes equation to the space- and time-dependent
porosity fluctuations via a Darcy friction term. Using a perturbative approach,
a Dyson equation for hydrodynamic fluctuations is derived and solved to express
the permeability in terms of the matrix fluctuation spectrum. Surprisingly, the
model reveals strong modifications of the fluid permeability in fluctuating matrices
compared to static ones. Applications to various matrix excitation models, the
breathing matrix, phonons, and active forcing, highlight the significant influence
of matrix fluctuations on fluid transport, offering insights for optimizing membrane
design for separation applications.
acknowledgement: "The authors acknowledge support from ERC project n-AQUA, Grant Agreement
No. 101071937.\r\nB.C. and A.S. acknowledge support from the CFM Foundation. B.C.
acknowledges support from\r\nthe NOMIS Foundation."
article_number: '014201'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Albert
full_name: Dombret, Albert
last_name: Dombret
- first_name: Adrien
full_name: Sutter, Adrien
last_name: Sutter
- first_name: Baptiste
full_name: Coquinot, Baptiste
id: f8417bd4-f599-11ee-a482-b927e3ed1e8e
last_name: Coquinot
orcid: 0000-0001-5524-596X
- first_name: Nikita
full_name: Kavokine, Nikita
last_name: Kavokine
- first_name: Benoit
full_name: Coasne, Benoit
last_name: Coasne
- first_name: Lydéric
full_name: Bocquet, Lydéric
last_name: Bocquet
citation:
ama: Dombret A, Sutter A, Coquinot B, Kavokine N, Coasne B, Bocquet L. Hydrodynamic
permeability of fluctuating porous membranes. Physical Review Fluids. 2026;11(1).
doi:10.1103/m8h6-1wfk
apa: Dombret, A., Sutter, A., Coquinot, B., Kavokine, N., Coasne, B., & Bocquet,
L. (2026). Hydrodynamic permeability of fluctuating porous membranes. Physical
Review Fluids. American Physical Society. https://doi.org/10.1103/m8h6-1wfk
chicago: Dombret, Albert, Adrien Sutter, Baptiste Coquinot, Nikita Kavokine, Benoit
Coasne, and Lydéric Bocquet. “Hydrodynamic Permeability of Fluctuating Porous
Membranes.” Physical Review Fluids. American Physical Society, 2026. https://doi.org/10.1103/m8h6-1wfk.
ieee: A. Dombret, A. Sutter, B. Coquinot, N. Kavokine, B. Coasne, and L. Bocquet,
“Hydrodynamic permeability of fluctuating porous membranes,” Physical Review
Fluids, vol. 11, no. 1. American Physical Society, 2026.
ista: Dombret A, Sutter A, Coquinot B, Kavokine N, Coasne B, Bocquet L. 2026. Hydrodynamic
permeability of fluctuating porous membranes. Physical Review Fluids. 11(1), 014201.
mla: Dombret, Albert, et al. “Hydrodynamic Permeability of Fluctuating Porous Membranes.”
Physical Review Fluids, vol. 11, no. 1, 014201, American Physical Society,
2026, doi:10.1103/m8h6-1wfk.
short: A. Dombret, A. Sutter, B. Coquinot, N. Kavokine, B. Coasne, L. Bocquet, Physical
Review Fluids 11 (2026).
corr_author: '1'
date_created: 2026-02-17T08:10:09Z
date_published: 2026-01-21T00:00:00Z
date_updated: 2026-02-23T12:01:57Z
day: '21'
department:
- _id: MiLe
doi: 10.1103/m8h6-1wfk
external_id:
arxiv:
- '2512.11368'
intvolume: ' 11'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2512.11368
month: '01'
oa: 1
oa_version: Preprint
publication: Physical Review Fluids
publication_identifier:
eissn:
- 2469-990X
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Hydrodynamic permeability of fluctuating porous membranes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21373'
abstract:
- lang: eng
text: Cold atom experiments show that a mobile impurity particle immersed in a weakly
interacting Bose-Einstein condensate forms a well-defined quasiparticle (Bose
polaron) for weak to moderate impurity-boson interaction strengths, whereas a
significant line broadening is consistently observed for strong interactions.
Motivated by this, we introduce a phenomenological theory based on the assumption
that the most relevant states are characterized by the impurity correlated with
at most one boson, since they have the largest overlap with the uncorrelated states
to which the most common experimental probes couple. These experimentally relevant
states can, however, decay to lower energy states characterized by correlations
involving multiple bosons, and we model this using a minimal variational wave
function combined with a complex impurity-boson interaction strength. We first
motivate this approach by comparing to a more elaborate theory that includes correlations
with up to two bosons. Our phenomenological model is shown to recover the main
results of two recent experiments probing both the spectral and the nonequilibrium
properties of the Bose polaron. Our work offers an intuitive framework for analyzing
experimental data and highlights the importance of understanding the complicated
problem of the Bose polaron decay in a many-body setting.
acknowledgement: We thank Georgios Koutentakis, Frédéric Chevy, Hussam Al Daas, and
Richard Schmidt for fruitful discussions; Jan Arlt for sharing their experimental
data and many fruitful discussions; and Christoph Eigen for sharing their experimental
data and inspiring discussions. R.A., T.P., and G.M.B. have been supported in part
by the Danish National Research Foundation through the Center of Excellence “CCQ”
(Grant Agreement No. DNRF156) and the Independent Research Fund Denmark–Natural
Sciences via Grant No. DFF-8021-00233B. R.A., A.G.V., and M.L. acknowledge support
by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). R.A.
received funding from the Austrian Academy of Science ÖAW Grant No. PR1029OEAW03.
article_number: L012034
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: G. M.
full_name: Bruun, G. M.
last_name: Bruun
- first_name: T.
full_name: Pohl, T.
last_name: Pohl
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Al Hyder R, Bruun GM, Pohl T, Lemeshko M, Volosniev A. Phenomenological model
of decaying Bose polarons. Physical Review Research. 2026;8. doi:10.1103/16dk-5dgx
apa: Al Hyder, R., Bruun, G. M., Pohl, T., Lemeshko, M., & Volosniev, A. (2026).
Phenomenological model of decaying Bose polarons. Physical Review Research.
American Physical Society. https://doi.org/10.1103/16dk-5dgx
chicago: Al Hyder, Ragheed, G. M. Bruun, T. Pohl, Mikhail Lemeshko, and Artem Volosniev.
“Phenomenological Model of Decaying Bose Polarons.” Physical Review Research.
American Physical Society, 2026. https://doi.org/10.1103/16dk-5dgx.
ieee: R. Al Hyder, G. M. Bruun, T. Pohl, M. Lemeshko, and A. Volosniev, “Phenomenological
model of decaying Bose polarons,” Physical Review Research, vol. 8. American
Physical Society, 2026.
ista: Al Hyder R, Bruun GM, Pohl T, Lemeshko M, Volosniev A. 2026. Phenomenological
model of decaying Bose polarons. Physical Review Research. 8, L012034.
mla: Al Hyder, Ragheed, et al. “Phenomenological Model of Decaying Bose Polarons.”
Physical Review Research, vol. 8, L012034, American Physical Society, 2026,
doi:10.1103/16dk-5dgx.
short: R. Al Hyder, G.M. Bruun, T. Pohl, M. Lemeshko, A. Volosniev, Physical Review
Research 8 (2026).
corr_author: '1'
date_created: 2026-03-01T23:01:39Z
date_published: 2026-02-06T00:00:00Z
date_updated: 2026-03-02T09:27:26Z
day: '06'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/16dk-5dgx
ec_funded: 1
external_id:
arxiv:
- '2507.04143'
file:
- access_level: open_access
checksum: 172720f1f0c5c9d06a282e52023a0030
content_type: application/pdf
creator: dernst
date_created: 2026-03-02T09:24:44Z
date_updated: 2026-03-02T09:24:44Z
file_id: '21376'
file_name: 2026_JPhysPhotonics_Volpe.pdf
file_size: 16789781
relation: main_file
success: 1
file_date_updated: 2026-03-02T09:24:44Z
has_accepted_license: '1'
intvolume: ' 8'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: 8fa7db46-16d5-11f0-9cad-917600954daf
grant_number: '12078'
name: Polarons in Lead Halide Perovskites
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Phenomenological model of decaying Bose polarons
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: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21009'
abstract:
- lang: eng
text: We demonstrate that periodically driven quantum rotors provide a promising
and broadly applicable platform to implement multigap topological phases, where
groups of bands can acquire topological invariants due to non-Abelian braiding
of band degeneracies. By adiabatically varying the periodic kicks to the rotor
we find nodal-line braiding, which causes sign flips of topological charges of
band nodes and can prevent them from annihilating, indicated by nonzero values
of the patch Euler class. In particular, we report on the emergence of an anomalous
Dirac string phase arising in the strongly driven regime, a truly out-of-equilibrium
phase of the quantum rotor. This phase emanates from braiding processes involving
all (quasienergy) gaps and manifests itself with edge states at zero angular momentum.
Our results reveal direct applications in state-of-the-art experiments of quantum
rotors, such as linear molecules driven by periodic far-off-resonant laser pulses
or artificial quantum rotors in optical lattices, whose extensive versatility
offers precise modification and observation of novel non-Abelian topological properties.
acknowledgement: We thank G. M. Koutentakis, S. Wimberger, J. G. E. Harris, T. Enss,
and A. Ghazaryan for fruitful discussions. M.L. acknowledges support by the European
Research Council (ERC) Starting Grant No. 801770 (ANGULON). R.-J.S. acknowledges
funding from a EPSRC ERC underwrite (Grant No. EP/X025829/1), a EPSRC New Investigator
Award (Grant No. EP/W00187X/1), and Trinity College, Cambridge. F.N.Ü. acknowledges
support from the Marie Skłodowska-Curie Programme of the European Commission (Grant
No. 893915), a Simons Investigator Award (Grant No. 511029), Trinity College Cambridge,
and the Royal Society (Grant No. URF/R1/241667).
article_number: '012216'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Volker
full_name: Karle, Volker
id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425
last_name: Karle
orcid: 0000-0002-6963-0129
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Adrien
full_name: Bouhon, Adrien
last_name: Bouhon
- first_name: Robert-Jan
full_name: Slager, Robert-Jan
last_name: Slager
- first_name: F. Nur
full_name: Ünal, F. Nur
last_name: Ünal
citation:
ama: Karle V, Lemeshko M, Bouhon A, Slager R-J, Ünal FN. Anomalous multigap topological
phases in periodically driven quantum rotors. Physical Review A. 2026;113(1).
doi:10.1103/db9d-9bns
apa: Karle, V., Lemeshko, M., Bouhon, A., Slager, R.-J., & Ünal, F. N. (2026).
Anomalous multigap topological phases in periodically driven quantum rotors. Physical
Review A. American Physical Society. https://doi.org/10.1103/db9d-9bns
chicago: Karle, Volker, Mikhail Lemeshko, Adrien Bouhon, Robert-Jan Slager, and
F. Nur Ünal. “Anomalous Multigap Topological Phases in Periodically Driven Quantum
Rotors.” Physical Review A. American Physical Society, 2026. https://doi.org/10.1103/db9d-9bns.
ieee: V. Karle, M. Lemeshko, A. Bouhon, R.-J. Slager, and F. N. Ünal, “Anomalous
multigap topological phases in periodically driven quantum rotors,” Physical
Review A, vol. 113, no. 1. American Physical Society, 2026.
ista: Karle V, Lemeshko M, Bouhon A, Slager R-J, Ünal FN. 2026. Anomalous multigap
topological phases in periodically driven quantum rotors. Physical Review A. 113(1),
012216.
mla: Karle, Volker, et al. “Anomalous Multigap Topological Phases in Periodically
Driven Quantum Rotors.” Physical Review A, vol. 113, no. 1, 012216, American
Physical Society, 2026, doi:10.1103/db9d-9bns.
short: V. Karle, M. Lemeshko, A. Bouhon, R.-J. Slager, F.N. Ünal, Physical Review
A 113 (2026).
corr_author: '1'
date_created: 2026-01-20T10:06:07Z
date_published: 2026-01-12T00:00:00Z
date_updated: 2026-03-16T12:21:55Z
day: '12'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/db9d-9bns
ec_funded: 1
external_id:
arxiv:
- '2408.16848'
file:
- access_level: open_access
checksum: ca62a5050a234c0554e2583b1c126057
content_type: application/pdf
creator: dernst
date_created: 2026-01-21T09:04:48Z
date_updated: 2026-01-21T09:04:48Z
file_id: '21029'
file_name: 2026_PhysicalReviewA_Karle.pdf
file_size: 2650256
relation: main_file
success: 1
file_date_updated: 2026-01-21T09:04:48Z
has_accepted_license: '1'
intvolume: ' 113'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Anomalous multigap topological phases in periodically driven quantum rotors
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: 113
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
_id: '21470'
abstract:
- lang: eng
text: Despite its pivotal role in optical manipulation, high capacity communications,
and quantum information, a general measure of orbital angular momentum (OAM) in
structured light remains elusive. In optical fields, where multiple vortices coexist,
the local nature of vortex OAM and the absence of a common rotation axis make
the total OAM of the field difficult to quantify. Here, we introduce the R index—a
metric that captures the intrinsic OAM content of any structured optical field,
from pure Laguerre–Gaussian modes to arbitrary multi vortex superpositions. Not
only does this metric quantify the total OAM, it also assesses field purity, providing
insight into the fidelity and robustness of the OAM generation. By unifying OAM
characterization into a single figure of merit, the R index enables direct comparison
across diverse beam profiles and facilitates the identification of optimal configurations
for both foundational studies and applied technologies.
acknowledgement: This research was funded in whole or in part by the Austrian Science
Fund (FWF) [10.55776/F1004]. For open access purposes, the author has applied a
CC BY public copyright license to any author accepted manuscript version arising
from this submission.
article_number: '015071'
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Monika
full_name: Bahl, Monika
last_name: Bahl
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: Mikhail
full_name: Maslov, Mikhail
id: 2E65BB0E-F248-11E8-B48F-1D18A9856A87
last_name: Maslov
orcid: 0000-0003-4074-2570
- first_name: Tom
full_name: Jungnickel, Tom
last_name: Jungnickel
- first_name: Timo
full_name: Gaßen, Timo
last_name: Gaßen
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Oliver H.
full_name: Heckl, Oliver H.
last_name: Heckl
citation:
ama: 'Bahl M, Koutentakis G, Maslov M, et al. The R-index: A universal metric for
evaluating OAM content and mode purity in optical fields. Journal of Physics:
Photonics. 2026;8(1). doi:10.1088/2515-7647/ae3506'
apa: 'Bahl, M., Koutentakis, G., Maslov, M., Jungnickel, T., Gaßen, T., Lemeshko,
M., & Heckl, O. H. (2026). The R-index: A universal metric for evaluating
OAM content and mode purity in optical fields. Journal of Physics: Photonics.
IOP Publishing. https://doi.org/10.1088/2515-7647/ae3506'
chicago: 'Bahl, Monika, Georgios Koutentakis, Mikhail Maslov, Tom Jungnickel, Timo
Gaßen, Mikhail Lemeshko, and Oliver H. Heckl. “The R-Index: A Universal Metric
for Evaluating OAM Content and Mode Purity in Optical Fields.” Journal of Physics:
Photonics. IOP Publishing, 2026. https://doi.org/10.1088/2515-7647/ae3506.'
ieee: 'M. Bahl et al., “The R-index: A universal metric for evaluating OAM
content and mode purity in optical fields,” Journal of Physics: Photonics,
vol. 8, no. 1. IOP Publishing, 2026.'
ista: 'Bahl M, Koutentakis G, Maslov M, Jungnickel T, Gaßen T, Lemeshko M, Heckl
OH. 2026. The R-index: A universal metric for evaluating OAM content and mode
purity in optical fields. Journal of Physics: Photonics. 8(1), 015071.'
mla: 'Bahl, Monika, et al. “The R-Index: A Universal Metric for Evaluating OAM Content
and Mode Purity in Optical Fields.” Journal of Physics: Photonics, vol.
8, no. 1, 015071, IOP Publishing, 2026, doi:10.1088/2515-7647/ae3506.'
short: 'M. Bahl, G. Koutentakis, M. Maslov, T. Jungnickel, T. Gaßen, M. Lemeshko,
O.H. Heckl, Journal of Physics: Photonics 8 (2026).'
corr_author: '1'
date_created: 2026-03-22T23:04:32Z
date_published: 2026-03-10T00:00:00Z
date_updated: 2026-03-23T13:26:26Z
day: '10'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1088/2515-7647/ae3506
external_id:
arxiv:
- '2508.12973'
file:
- access_level: open_access
checksum: 0ec8a2d3f9efa704203a41f068344974
content_type: application/pdf
creator: dernst
date_created: 2026-03-23T13:24:01Z
date_updated: 2026-03-23T13:24:01Z
file_id: '21476'
file_name: 2026_JPhysPhotonics_Bahl.pdf
file_size: 1150404
relation: main_file
success: 1
file_date_updated: 2026-03-23T13:24:01Z
has_accepted_license: '1'
intvolume: ' 8'
issue: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 7c040762-9f16-11ee-852c-dd79eeee4ab3
grant_number: F100403
name: Coherent Optical Metrology Beyond Electric-Dipole-Allowed Transitions
publication: 'Journal of Physics: Photonics'
publication_identifier:
eissn:
- 2515-7647
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The R-index: A universal metric for evaluating OAM content and mode purity
in optical fields'
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'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21660'
abstract:
- lang: eng
text: Kapitza-Dirac scattering, the diffraction of matter waves from a standing
light field, is widely utilized in ultracold gases, but its behavior in the strongly
interacting regime is an open question. Here, we develop a numerically exact two-body
description of Kapitza-Dirac scattering for two contact-interacting atoms in a
one-dimensional harmonic trap subjected to a pulsed optical lattice, enabling
us to obtain the numerically exact dynamics. We map how interaction strength,
lattice depth, lattice wave number, and pulse duration reshape the diffraction
pattern, leading to an interaction-dependent population redistribution in real
and momentum space. By comparing the exact dynamics to an impulsive sudden-approximation
description, we delineate the parameter regimes where it remains accurate and
those, notably at strong attraction and small lattice wave number, where it fails.
Our results provide a controlled few-body benchmark for interacting Kapitza-Dirac
scattering and quantitative guidance for Kapitza-Dirac-based probes of ultracold
atomic systems.
acknowledgement: We thank Max Hachmann, Andreas Hemmerich, and Yann Kiefer for valuable
discussions. This work has been funded by the Cluster of Excellence “Advanced Imaging
of Matter” of the Deutsche Forschungsgemeinschaft (DFG) - EXC 2056 - Project ID
390715994. G.M.K. has received funding by the Austrian Science Fund (FWF) 10.55776/F1004.
article_number: '013297'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: A.
full_name: Becker, A.
last_name: Becker
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: P.
full_name: Schmelcher, P.
last_name: Schmelcher
citation:
ama: Becker A, Koutentakis G, Schmelcher P. Two-body Kapitza-Dirac scattering of
one-dimensional ultracold atoms. Physical Review Research. 2026;8. doi:10.1103/rdsn-stlq
apa: Becker, A., Koutentakis, G., & Schmelcher, P. (2026). Two-body Kapitza-Dirac
scattering of one-dimensional ultracold atoms. Physical Review Research.
American Physical Society. https://doi.org/10.1103/rdsn-stlq
chicago: Becker, A., Georgios Koutentakis, and P. Schmelcher. “Two-Body Kapitza-Dirac
Scattering of One-Dimensional Ultracold Atoms.” Physical Review Research.
American Physical Society, 2026. https://doi.org/10.1103/rdsn-stlq.
ieee: A. Becker, G. Koutentakis, and P. Schmelcher, “Two-body Kapitza-Dirac scattering
of one-dimensional ultracold atoms,” Physical Review Research, vol. 8.
American Physical Society, 2026.
ista: Becker A, Koutentakis G, Schmelcher P. 2026. Two-body Kapitza-Dirac scattering
of one-dimensional ultracold atoms. Physical Review Research. 8, 013297.
mla: Becker, A., et al. “Two-Body Kapitza-Dirac Scattering of One-Dimensional Ultracold
Atoms.” Physical Review Research, vol. 8, 013297, American Physical Society,
2026, doi:10.1103/rdsn-stlq.
short: A. Becker, G. Koutentakis, P. Schmelcher, Physical Review Research 8 (2026).
corr_author: '1'
date_created: 2026-04-05T22:01:32Z
date_published: 2026-03-18T00:00:00Z
date_updated: 2026-04-07T09:37:57Z
day: '18'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/rdsn-stlq
external_id:
arxiv:
- '2512.15260'
file:
- access_level: open_access
checksum: 339bff9d13486a8028049404988b9b0b
content_type: application/pdf
creator: dernst
date_created: 2026-04-07T09:34:31Z
date_updated: 2026-04-07T09:34:31Z
file_id: '21667'
file_name: 2026_PhysicalReviewResearch_Becker.pdf
file_size: 2131627
relation: main_file
success: 1
file_date_updated: 2026-04-07T09:34:31Z
has_accepted_license: '1'
intvolume: ' 8'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 7c040762-9f16-11ee-852c-dd79eeee4ab3
grant_number: F100403
name: Coherent Optical Metrology Beyond Electric-Dipole-Allowed Transitions
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Two-body Kapitza-Dirac scattering of one-dimensional ultracold atoms
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: 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. The Journal of Chemical Physics.
2026;164(13). doi:10.1063/5.0313352
apa: Coquinot, B., Lizée, M., Bocquet, L., & Kavokine, N. (2026). Electron–electrolyte
coupling in AC transport through nanofluidic channels. The Journal of Chemical
Physics. AIP Publishing. https://doi.org/10.1063/5.0313352
chicago: Coquinot, Baptiste, Mathieu Lizée, Lydéric Bocquet, and Nikita Kavokine.
“Electron–Electrolyte Coupling in AC Transport through Nanofluidic Channels.”
The Journal of Chemical Physics. AIP Publishing, 2026. https://doi.org/10.1063/5.0313352.
ieee: B. Coquinot, M. Lizée, L. Bocquet, and N. Kavokine, “Electron–electrolyte
coupling in AC transport through nanofluidic channels,” The Journal of Chemical
Physics, 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.” The Journal of Chemical Physics, vol. 164, no. 13,
134704, AIP Publishing, 2026, doi:10.1063/5.0313352.
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
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
_id: '18710'
abstract:
- lang: eng
text: We present an ab initio theoretical method to calculate the resonant Auger
spectrum in the presence of ultrafast dissociation. The method is demonstrated
by deriving the L-VV resonant Auger spectrum mediated by the 2p3/2−1σ* resonance
in HCl, where the electronic Auger decay and nuclear dissociation occur on the
same time scale. The Auger decay rates are calculated within the one-center approximation
and are shown to vary significantly with the inter-nuclear distance. A quantum-mechanical
description of dissociation is effectuated by propagating the corresponding Franck–Condon
factors. The calculated profiles of Auger spectral lines resemble those of atomic
Auger decay but here the characteristic tails extend towards lower electron kinetic
energies, which reflect specific features of the potential energy curves. The
presented method can describe the resonant Auger spectrum for an arbitrary speed
of dissociation and simplifies to known approximations in the limiting cases.
acknowledgement: This publication is based upon work from COST Action CA18212 – Molecular
Dynamics in the GAS phase (MD-GAS), supported by COST (European Cooperation in Science
and Technology). This work was financially supported by the Slovenian Research Agency
in the framework of research program P1-0112 Studies of Atoms, Molecules and Structures
by Photons and Particles. Part of this work was financed by the European Research
Council (ERC) through the Starting Grant No. 801770 (ANGULON). The authors acknowledge
P. Lablanquie, H. Iwayama, F. Penent, K. Soejima and E. Shigemasa for sharing their
unpublished experimental spectra on HCl.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Mateja
full_name: Hrast, Mateja
id: 48dbb294-2a9c-11ef-905d-f56be71f0e5d
last_name: Hrast
- first_name: Marko
full_name: Ljubotina, Marko
id: F75EE9BE-5C90-11EA-905D-16643DDC885E
last_name: Ljubotina
orcid: 0000-0003-0038-7068
- first_name: Matjaz
full_name: Zitnik, Matjaz
last_name: Zitnik
citation:
ama: Hrast M, Ljubotina M, Zitnik M. Ab initio Auger spectrum of the ultrafast dissociating
2p3/2−1σ* resonance in HCl. Physical Chemistry Chemical Physics. 2025;27(3):1473-1482.
doi:10.1039/d4cp03727h
apa: Hrast, M., Ljubotina, M., & Zitnik, M. (2025). Ab initio Auger spectrum
of the ultrafast dissociating 2p3/2−1σ* resonance in HCl. Physical Chemistry
Chemical Physics. Royal Society of Chemistry. https://doi.org/10.1039/d4cp03727h
chicago: Hrast, Mateja, Marko Ljubotina, and Matjaz Zitnik. “Ab Initio Auger Spectrum
of the Ultrafast Dissociating 2p3/2−1σ* Resonance in HCl.” Physical Chemistry
Chemical Physics. Royal Society of Chemistry, 2025. https://doi.org/10.1039/d4cp03727h.
ieee: M. Hrast, M. Ljubotina, and M. Zitnik, “Ab initio Auger spectrum of the ultrafast
dissociating 2p3/2−1σ* resonance in HCl,” Physical Chemistry Chemical Physics,
vol. 27, no. 3. Royal Society of Chemistry, pp. 1473–1482, 2025.
ista: Hrast M, Ljubotina M, Zitnik M. 2025. Ab initio Auger spectrum of the ultrafast
dissociating 2p3/2−1σ* resonance in HCl. Physical Chemistry Chemical Physics.
27(3), 1473–1482.
mla: Hrast, Mateja, et al. “Ab Initio Auger Spectrum of the Ultrafast Dissociating
2p3/2−1σ* Resonance in HCl.” Physical Chemistry Chemical Physics, vol.
27, no. 3, Royal Society of Chemistry, 2025, pp. 1473–82, doi:10.1039/d4cp03727h.
short: M. Hrast, M. Ljubotina, M. Zitnik, Physical Chemistry Chemical Physics 27
(2025) 1473–1482.
corr_author: '1'
date_created: 2024-12-29T23:01:58Z
date_published: 2025-01-21T00:00:00Z
date_updated: 2025-05-19T14:03:19Z
day: '21'
ddc:
- '530'
department:
- _id: MiLe
- _id: MaSe
doi: 10.1039/d4cp03727h
ec_funded: 1
external_id:
isi:
- '001379819100001'
pmid:
- '39698879'
file:
- access_level: open_access
checksum: d035683179547b41b811107a8649aab0
content_type: application/pdf
creator: dernst
date_created: 2025-04-16T09:46:45Z
date_updated: 2025-04-16T09:46:45Z
file_id: '19581'
file_name: 2025_PCCP_Hrast.pdf
file_size: 1270582
relation: main_file
success: 1
file_date_updated: 2025-04-16T09:46:45Z
has_accepted_license: '1'
intvolume: ' 27'
isi: 1
issue: '3'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/3.0/
month: '01'
oa: 1
oa_version: Published Version
page: 1473-1482
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Chemistry Chemical Physics
publication_identifier:
issn:
- 1463-9076
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
related_material:
record:
- id: '18716'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Ab initio Auger spectrum of the ultrafast dissociating 2p3/2−1σ* resonance
in HCl
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19880'
abstract:
- lang: eng
text: We investigate quantum transport in a two-dimensional electron system coupled
to a chiral molecular potential, demonstrating how molecular chirality and orientation
affect charge and spin transport properties. We propose a minimal model for realizing
true chiral symmetry breaking on a magnetized surface, with a crucial role played
by the tilt angle of the molecular dipole with respect to the surface. For non-zero
tilting, we show that the Hall response exhibits clear signatures of chirality-induced
effects, in both charge- and spin-resolved observables. Concerning the former,
tilted enantiomers produce asymmetric Hall conductances and, even more remarkably,
the persistence of this feature in the absence of spin–orbit coupling (SOC) signals
how the enantiospecific charge response results from electron scattering off the
molecular potential. Concerning spin-resolved observables where SOC plays a relevant
role, we reveal that chiral symmetry breaking is crucial in enabling spin-flipping
processes.
acknowledgement: We thank Artem Volosniev, Narcis Avarvari, Georgios Koutentakis,
Sandro Wimberger, and Binghai Yan for useful discussions. R.A. received funding
from the Austrian Academy of Science ÖWA, Grant No. PR1029OEAW03. M.L. acknowledges
support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).
A.C. received funding from the European Union’s Horizon Europe research and innovation
program under the Marie Skłodowska-Curie Grant Agreement No. 101062862-NeqMolRot.
article_number: '234106'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Alberto
full_name: Cappellaro, Alberto
id: 9d13b3cb-30a2-11eb-80dc-f772505e8660
last_name: Cappellaro
orcid: 0000-0001-6110-2359
citation:
ama: Al Hyder R, Lemeshko M, Cappellaro A. Quantum transport in the presence of
a chiral molecular potential. The Journal of Chemical Physics. 2025;162(23).
doi:10.1063/5.0271155
apa: Al Hyder, R., Lemeshko, M., & Cappellaro, A. (2025). Quantum transport
in the presence of a chiral molecular potential. The Journal of Chemical Physics.
AIP Publishing. https://doi.org/10.1063/5.0271155
chicago: Al Hyder, Ragheed, Mikhail Lemeshko, and Alberto Cappellaro. “Quantum Transport
in the Presence of a Chiral Molecular Potential.” The Journal of Chemical Physics.
AIP Publishing, 2025. https://doi.org/10.1063/5.0271155.
ieee: R. Al Hyder, M. Lemeshko, and A. Cappellaro, “Quantum transport in the presence
of a chiral molecular potential,” The Journal of Chemical Physics, vol.
162, no. 23. AIP Publishing, 2025.
ista: Al Hyder R, Lemeshko M, Cappellaro A. 2025. Quantum transport in the presence
of a chiral molecular potential. The Journal of Chemical Physics. 162(23), 234106.
mla: Al Hyder, Ragheed, et al. “Quantum Transport in the Presence of a Chiral Molecular
Potential.” The Journal of Chemical Physics, vol. 162, no. 23, 234106,
AIP Publishing, 2025, doi:10.1063/5.0271155.
short: R. Al Hyder, M. Lemeshko, A. Cappellaro, The Journal of Chemical Physics
162 (2025).
corr_author: '1'
date_created: 2025-06-23T13:55:28Z
date_published: 2025-06-21T00:00:00Z
date_updated: 2025-09-30T13:40:55Z
day: '21'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1063/5.0271155
ec_funded: 1
external_id:
arxiv:
- '2503.14124'
isi:
- '001512872900010'
pmid:
- '40526561'
file:
- access_level: open_access
checksum: e278631d949657baa9d5309dad5f4b77
content_type: application/pdf
creator: dernst
date_created: 2025-06-23T14:03:30Z
date_updated: 2025-06-23T14:03:30Z
file_id: '19881'
file_name: 2025_JourChemicalPhysics_AlHyder.pdf
file_size: 7202681
relation: main_file
success: 1
file_date_updated: 2025-06-23T14:03:30Z
has_accepted_license: '1'
intvolume: ' 162'
isi: 1
issue: '23'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: bd7b5202-d553-11ed-ba76-9b1c1b258338
grant_number: '101062862'
name: Non-Equilibrium Field Theory of Molecular Rotations
- _id: 8fa7db46-16d5-11f0-9cad-917600954daf
grant_number: '12078'
name: Polarons in Lead Halide Perovskites
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: Quantum transport in the presence of a chiral molecular potential
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 162
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: diamond
PlanS_conform: '1'
_id: '20003'
abstract:
- lang: eng
text: The problem of mobile impurities in quantum baths is of fundamental importance
in many-body physics. There has recently been significant progress regarding our
understanding of this due to cold atom experiments, but so far it has mainly been
concerned with cases where the bath has no or only weak interactions, or the impurity
interacts weakly with the bath. Here, we address this gap by developing a new
theoretical framework for exploring a mobile impurity interacting strongly with
a highly correlated bath of bosons in the quantum critical regime of a Mott insulator
(MI) to superfluid (SF) quantum phase transition. Our framework is based on a
powerful quantum Gutzwiller (QGW) description of the bosonic bath combined with
diagrammatic field theory for the impurity-bath interactions. By resumming a selected
class of diagrams to infinite order, a rich picture emerges where the impurity
is dressed by the fundamental modes of the bath, which change character from gapped
particle-hole excitations in the MI to Higgs and gapless Goldstone modes in the
SF. This gives rise to the existence of several quasiparticle (polaron) branches
with properties reflecting the strongly correlated environment. In particular,
one polaron branch exhibits a sharp cusp in its energy, while a new ground-state
polaron emerges at the O(2) quantum phase transition point for integer filling,
which reflects the nonanalytic behavior at the transition and the appearance of
the Goldstone mode in the SF phase. Smooth versions of these features are inherited
in the polaron spectrum away from integer filling due to the influence of Mott
physics on the bosonic bath. We furthermore compare our diagrammatic results with
quantum Monte Carlo calculations, obtaining excellent agreement. This accuracy
is quite remarkable for such a highly non-trivial case of strong interactions
between the impurity and bosons in a maximally correlated quantum critical regime,
and it establishes the utility of our framework. Finally, our results show how
impurities can be used as quantum sensors and highlight fundamental differences
between experiments performed at a fixed particle number or a fixed chemical potential.
article_number: '002'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: Victor E.
full_name: Colussi, Victor E.
last_name: Colussi
- first_name: Matija
full_name: Čufar, Matija
last_name: Čufar
- first_name: Joachim
full_name: Brand, Joachim
last_name: Brand
- first_name: Alessio
full_name: Recati, Alessio
last_name: Recati
- first_name: Georg M.
full_name: Bruun, Georg M.
last_name: Bruun
citation:
ama: Al Hyder R, Colussi VE, Čufar M, Brand J, Recati A, Bruun GM. Lattice Bose
polarons at strong coupling and quantum criticality. Scipost Physics. 2025;19(1).
doi:10.21468/SciPostPhys.19.1.002
apa: Al Hyder, R., Colussi, V. E., Čufar, M., Brand, J., Recati, A., & Bruun,
G. M. (2025). Lattice Bose polarons at strong coupling and quantum criticality.
Scipost Physics. SciPost Foundation. https://doi.org/10.21468/SciPostPhys.19.1.002
chicago: Al Hyder, Ragheed, Victor E. Colussi, Matija Čufar, Joachim Brand, Alessio
Recati, and Georg M. Bruun. “Lattice Bose Polarons at Strong Coupling and Quantum
Criticality.” Scipost Physics. SciPost Foundation, 2025. https://doi.org/10.21468/SciPostPhys.19.1.002.
ieee: R. Al Hyder, V. E. Colussi, M. Čufar, J. Brand, A. Recati, and G. M. Bruun,
“Lattice Bose polarons at strong coupling and quantum criticality,” Scipost
Physics, vol. 19, no. 1. SciPost Foundation, 2025.
ista: Al Hyder R, Colussi VE, Čufar M, Brand J, Recati A, Bruun GM. 2025. Lattice
Bose polarons at strong coupling and quantum criticality. Scipost Physics. 19(1),
002.
mla: Al Hyder, Ragheed, et al. “Lattice Bose Polarons at Strong Coupling and Quantum
Criticality.” Scipost Physics, vol. 19, no. 1, 002, SciPost Foundation,
2025, doi:10.21468/SciPostPhys.19.1.002.
short: R. Al Hyder, V.E. Colussi, M. Čufar, J. Brand, A. Recati, G.M. Bruun, Scipost
Physics 19 (2025).
corr_author: '1'
date_created: 2025-07-13T22:01:22Z
date_published: 2025-07-01T00:00:00Z
date_updated: 2025-09-30T14:00:26Z
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department:
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doi: 10.21468/SciPostPhys.19.1.002
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- '001523515000002'
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publication_identifier:
eissn:
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publisher: SciPost Foundation
quality_controlled: '1'
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title: Lattice Bose polarons at strong coupling and quantum criticality
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
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...
---
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_id: '20405'
abstract:
- lang: eng
text: Dielectric breakdown of physical vacuum (Schwinger effect) is the textbook
demonstration of compatibility of Relativity and Quantum theory. Although observing
this effect is still practically unachievable, its analogue generalizations have
been shown to be more readily attainable. This paper demonstrates that a gapped
Dirac semiconductor, methylammonium lead-bromide perovskite (MAPbBr3), exhibits
analogue dynamic Schwinger effect. Tunneling ionization under deep subgap mid-infrared
irradiation leads to intense photoluminescence in the visible range, in full agreement
with quasi-adiabatic theory. In addition to revealing a gapped extended system
suitable for studying the analogue Schwinger effect, this observation holds great
potential for nonperturbative field sensing, i.e., sensing electric fields through
nonperturbative light-matter interactions. First, this paper illustrates this
by measuring the local deviation from the nominally cubic phase of a perovskite
single crystal, which can be interpreted in terms of frozen-in fields. Next, it
is shown that analogue dynamic Schwinger effect can be used for nonperturbative
amplification of nonparametric upconversion process in perovskites driven simultaneously
by multiple optical fields. This discovery demonstrates the potential for material
response beyond perturbation theory in the tunneling regime, offering extremely
sensitive light detection and amplification across an ultrabroad spectral range
not accessible by conventional devices.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: A.G.V. thanks Peter Balling for useful discussions. This research
was supported by the Scientific Service Units (SSU) of ISTA through resources provided
by the Electron Microscopy Facility (EMF), and by the Werner Siemens Foundation
(WSS) for financial support.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Ayan A.
full_name: Zhumekenov, Ayan A.
last_name: Zhumekenov
- first_name: Seungho
full_name: Lee, Seungho
id: BB243B88-D767-11E9-B658-BC13E6697425
last_name: Lee
orcid: 0000-0002-6962-8598
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Osman M.
full_name: Bakr, Osman M.
last_name: Bakr
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: Lorenc D, Volosniev A, Zhumekenov AA, et al. Observation of analogue dynamic
Schwinger effect and non-perturbative light sensing in lead halide perovskites.
ACS Photonics. 2025;12(9):5220-5230. doi:10.1021/acsphotonics.5c01360
apa: Lorenc, D., Volosniev, A., Zhumekenov, A. A., Lee, S., Ibáñez, M., Bakr, O.
M., … Alpichshev, Z. (2025). Observation of analogue dynamic Schwinger effect
and non-perturbative light sensing in lead halide perovskites. ACS Photonics.
American Chemical Society. https://doi.org/10.1021/acsphotonics.5c01360
chicago: Lorenc, Dusan, Artem Volosniev, Ayan A. Zhumekenov, Seungho Lee, Maria
Ibáñez, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Observation
of Analogue Dynamic Schwinger Effect and Non-Perturbative Light Sensing in Lead
Halide Perovskites.” ACS Photonics. American Chemical Society, 2025. https://doi.org/10.1021/acsphotonics.5c01360.
ieee: D. Lorenc et al., “Observation of analogue dynamic Schwinger effect
and non-perturbative light sensing in lead halide perovskites,” ACS Photonics,
vol. 12, no. 9. American Chemical Society, pp. 5220–5230, 2025.
ista: Lorenc D, Volosniev A, Zhumekenov AA, Lee S, Ibáñez M, Bakr OM, Lemeshko M,
Alpichshev Z. 2025. Observation of analogue dynamic Schwinger effect and non-perturbative
light sensing in lead halide perovskites. ACS Photonics. 12(9), 5220–5230.
mla: Lorenc, Dusan, et al. “Observation of Analogue Dynamic Schwinger Effect and
Non-Perturbative Light Sensing in Lead Halide Perovskites.” ACS Photonics,
vol. 12, no. 9, American Chemical Society, 2025, pp. 5220–30, doi:10.1021/acsphotonics.5c01360.
short: D. Lorenc, A. Volosniev, A.A. Zhumekenov, S. Lee, M. Ibáñez, O.M. Bakr, M.
Lemeshko, Z. Alpichshev, ACS Photonics 12 (2025) 5220–5230.
corr_author: '1'
date_created: 2025-09-28T22:01:26Z
date_published: 2025-08-11T00:00:00Z
date_updated: 2025-12-01T12:59:51Z
day: '11'
ddc:
- '540'
- '530'
department:
- _id: MaIb
- _id: MiLe
- _id: ZhAl
doi: 10.1021/acsphotonics.5c01360
external_id:
arxiv:
- '2406.05032'
isi:
- '001547359300001'
file:
- access_level: open_access
checksum: d42476279287a9a2f8aeafaef032f4a7
content_type: application/pdf
creator: dernst
date_created: 2025-10-20T11:02:21Z
date_updated: 2025-10-20T11:02:21Z
file_id: '20502'
file_name: 2025_ACSPhotonics_Lorenc.pdf
file_size: 6609950
relation: main_file
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has_accepted_license: '1'
intvolume: ' 12'
isi: 1
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- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 5220-5230
project:
- _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A
name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of
Semiconductors for Waste Heat Recovery'
publication: ACS Photonics
publication_identifier:
eissn:
- 2330-4022
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Observation of analogue dynamic Schwinger effect and non-perturbative light
sensing in lead halide perovskites
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: 12
year: '2025'
...
---
OA_type: closed access
_id: '20432'
abstract:
- lang: eng
text: A rapidly increasing body of work reporting phenomena associated with lattice
vibrations carrying angular momentum has led to the emergence of the field of
chiral phonons. Some of these properties, such as the phonon magnetic moment,
also occur in achiral phonons that are circularly or elliptically polarized, while
the presence of chirality has additional implications for the types of interaction
allowed between the phonons and light, electrons and other quasiparticles. In
this Perspective we introduce a framework for classifying phonons with angular
momentum, and provide illustrations of the different types using examples from
the recent literature. Specifically, we suggest the term ‘axial phonon’ to encompass
all phonons that carry angular momentum, real or pseudo, and reserve the term
‘chiral phonon’ for those phonons that break improper rotational symmetry. We
hope that this scheme provides clarification on the matter of phonon chirality
and will serve as a guide for future research.
acknowledgement: We thank A. V. Balatsky, E. Bousquet, A. Disa, S. Kamba, L. Klebl,
R. Merlin, A. Srivastava, A. Stroppa, M. Udina, P. Wong and D. Xiao for valuable
discussions. M.B. acknowledges support from SNSF Ambizione project number PZ00P2_216089.
P.B. and U.N. acknowledge funding from the Deutsche Forschungsgemeinschaft (grant
number 541503763). B.F. acknowledges support from the National Science Foundation
under grant number NSF DMR-2144086. G.G. acknowledges support from STeP2 number
ANR-22-EXES-0013, QuantExt number ANR-23-CE30-0001-01, Audace CEA number ANR-24-RRII-0004
and the École Polytechnique foundation. A.I.K. acknowledges the Nederlandse Organisatie
voor Wetenschappelijk Onderzoek (NWO-I) for their financial contribution, including
the support of the HFML-FELIX Laboratory. D.M.J. acknowledges support from Tel Aviv
University and ERC Starting Grant CHIRALPHONONICS grant number 101166037. S.F.M.
acknowledges funding from the Deutsche Forschungsgemeinschaft (grant number 469405347).
C.P.R. and N.A.S. were supported by ETH Zurich and by the European Union and Horizon
2020, grant agreement numbers 810451 and 101030352. R.M.G. acknowledges support
from the Swedish Research Council (VR starting grant number 2022-03350), the Olle
Engkvist Foundation (grant number 229-0443), the Royal Physiographic Society in
Lund (Horisont), the Knut and Alice Wallenberg Foundation (grant number 2023.0087)
and Chalmers University of Technology via the Department of Physics and the Areas
of Advance Nano and Materials Science. Q.N. is supported by the National Natural
Science Foundation of China (grant number 12234017) and the National Key Research
and Development Program of China (grant number 2023YFA1406300). H.R. acknowledges
funding from the Engineering and Physical Sciences Research Council (grant number
UKRI122) and Royal Society (grant number IES\R2\242309). T.S. acknowledges support
from MEXT X-NICS (grant number JPJ011438), NINS OML Project (grant number OML012301)
and JST CREST (grant number JPMJCR24R5). H.Z. acknowledges support from the Welch
Foundation (grant number C-2128) and the National Science Foundation (grant number
DMR-2240106). We acknowledge support from the Centre Européen de Calcul Atomique
et Moléculaire (CECAM) in connection to organizing the workshop "Chiral Phonons
in Quantum Materials", held in 2023, where the idea for this paper emerged.
article_processing_charge: No
article_type: original
author:
- first_name: Dominik M.
full_name: Juraschek, Dominik M.
last_name: Juraschek
- first_name: R. Matthias
full_name: Geilhufe, R. Matthias
last_name: Geilhufe
- first_name: Hanyu
full_name: Zhu, Hanyu
last_name: Zhu
- first_name: Martina
full_name: Basini, Martina
last_name: Basini
- first_name: Peter
full_name: Baum, Peter
last_name: Baum
- first_name: Andrey
full_name: Baydin, Andrey
last_name: Baydin
- first_name: Swati
full_name: Chaudhary, Swati
last_name: Chaudhary
- first_name: Michael
full_name: Fechner, Michael
last_name: Fechner
- first_name: Benedetta
full_name: Flebus, Benedetta
last_name: Flebus
- first_name: Gael
full_name: Grissonnanche, Gael
last_name: Grissonnanche
- first_name: Andrei I.
full_name: Kirilyuk, Andrei I.
last_name: Kirilyuk
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Sebastian F.
full_name: Maehrlein, Sebastian F.
last_name: Maehrlein
- first_name: Maxime
full_name: Mignolet, Maxime
last_name: Mignolet
- first_name: Shuichi
full_name: Murakami, Shuichi
last_name: Murakami
- first_name: Qian
full_name: Niu, Qian
last_name: Niu
- first_name: Ulrich
full_name: Nowak, Ulrich
last_name: Nowak
- first_name: Carl P.
full_name: Romao, Carl P.
last_name: Romao
- first_name: Habib
full_name: Rostami, Habib
last_name: Rostami
- first_name: Takuya
full_name: Satoh, Takuya
last_name: Satoh
- first_name: Nicola A.
full_name: Spaldin, Nicola A.
last_name: Spaldin
- first_name: Hiroki
full_name: Ueda, Hiroki
last_name: Ueda
- first_name: Lifa
full_name: Zhang, Lifa
last_name: Zhang
citation:
ama: Juraschek DM, Geilhufe RM, Zhu H, et al. Chiral phonons. Nature Physics.
2025;21:1532-1540. doi:10.1038/s41567-025-03001-9
apa: Juraschek, D. M., Geilhufe, R. M., Zhu, H., Basini, M., Baum, P., Baydin, A.,
… Zhang, L. (2025). Chiral phonons. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-025-03001-9
chicago: Juraschek, Dominik M., R. Matthias Geilhufe, Hanyu Zhu, Martina Basini,
Peter Baum, Andrey Baydin, Swati Chaudhary, et al. “Chiral Phonons.” Nature
Physics. Springer Nature, 2025. https://doi.org/10.1038/s41567-025-03001-9.
ieee: D. M. Juraschek et al., “Chiral phonons,” Nature Physics, vol.
21. Springer Nature, pp. 1532–1540, 2025.
ista: Juraschek DM, Geilhufe RM, Zhu H, Basini M, Baum P, Baydin A, Chaudhary S,
Fechner M, Flebus B, Grissonnanche G, Kirilyuk AI, Lemeshko M, Maehrlein SF, Mignolet
M, Murakami S, Niu Q, Nowak U, Romao CP, Rostami H, Satoh T, Spaldin NA, Ueda
H, Zhang L. 2025. Chiral phonons. Nature Physics. 21, 1532–1540.
mla: Juraschek, Dominik M., et al. “Chiral Phonons.” Nature Physics, vol.
21, Springer Nature, 2025, pp. 1532–40, doi:10.1038/s41567-025-03001-9.
short: D.M. Juraschek, R.M. Geilhufe, H. Zhu, M. Basini, P. Baum, A. Baydin, S.
Chaudhary, M. Fechner, B. Flebus, G. Grissonnanche, A.I. Kirilyuk, M. Lemeshko,
S.F. Maehrlein, M. Mignolet, S. Murakami, Q. Niu, U. Nowak, C.P. Romao, H. Rostami,
T. Satoh, N.A. Spaldin, H. Ueda, L. Zhang, Nature Physics 21 (2025) 1532–1540.
date_created: 2025-10-05T22:01:37Z
date_published: 2025-10-01T00:00:00Z
date_updated: 2026-01-05T13:25:59Z
day: '01'
department:
- _id: MiLe
doi: 10.1038/s41567-025-03001-9
external_id:
isi:
- '001575765100001'
intvolume: ' 21'
isi: 1
language:
- iso: eng
month: '10'
oa_version: None
page: 1532-1540
publication: Nature Physics
publication_identifier:
eissn:
- 1745-2481
issn:
- 1745-2473
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Chiral phonons
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: diamond
PlanS_conform: '1'
_id: '20666'
abstract:
- lang: eng
text: We theoretically investigate the stationary properties of a spin-1/2 impurity
immersed in a one-dimensional confined Bose gas. In particular, we consider coherently
coupled spin states with an external field, where only one spin component interacts
with the bath, enabling light dressing of the impurity and spin-dependent bath-impurity
interactions. Through detailed comparisons with ab-initio many-body simulations,
we demonstrate that the composite system is accurately described by a simplified
effective Hamiltonian. The latter builds upon previously developed effective potential
approaches in the absence of light dressing. It can be used to extract the impurity
energy, residue, effective mass, and anharmonicity induced by the phononic dressing.
Light-dressing is shown to increase the polaron residue, undressing the impurity
from phononic excitations because of strong spin coupling. For strong repulsions,
previously shown to trigger dynamical Bose polaron decay (a phenomenon called
temporal orthogonality catastrophe), it is explained that strong light-dressing
stabilizes a repulsive polaron-dressed state. Our results establish the effective
Hamiltonian framework as a powerful tool for exploring strongly interacting polaronic
systems and corroborating forthcoming experimental realizations.
acknowledgement: "G.M.K. has received funding by the Austrian Science Fund (FWF)\r\n[DOI:
10.55776/F1004]. S.I.M acknowledges support from the Missouri University of Science
and Technology, Department of Physics, Startup fund. F.G. acknowledges funding by
the\r\nDeutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s
Excellence Strategy – EXC-2111 — 390814868. H.R.S. acknowledges support for ITAMP
by the\r\nNSF. P.S. acknowledges funding by the Cluster of Excellence “Advanced
Imaging of Matter” of\r\nthe Deutsche Forschungsgemeinschaft (DFG) - EXC 2056 -
project ID 390715994."
article_number: '093'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: S. I.
full_name: Mistakidis, S. I.
last_name: Mistakidis
- first_name: F.
full_name: Grusdt, F.
last_name: Grusdt
- first_name: H. R.
full_name: Sadeghpour, H. R.
last_name: Sadeghpour
- first_name: P.
full_name: Schmelcher, P.
last_name: Schmelcher
citation:
ama: Koutentakis G, Mistakidis SI, Grusdt F, Sadeghpour HR, Schmelcher P. Competition
of light-and phonon-dressing in microwave-dressed Bose polarons. Scipost Physics.
2025;19(4). doi:10.21468/SciPostPhys.19.4.093
apa: Koutentakis, G., Mistakidis, S. I., Grusdt, F., Sadeghpour, H. R., & Schmelcher,
P. (2025). Competition of light-and phonon-dressing in microwave-dressed Bose
polarons. Scipost Physics. SciPost Foundation. https://doi.org/10.21468/SciPostPhys.19.4.093
chicago: Koutentakis, Georgios, S. I. Mistakidis, F. Grusdt, H. R. Sadeghpour, and
P. Schmelcher. “Competition of Light-and Phonon-Dressing in Microwave-Dressed
Bose Polarons.” Scipost Physics. SciPost Foundation, 2025. https://doi.org/10.21468/SciPostPhys.19.4.093.
ieee: G. Koutentakis, S. I. Mistakidis, F. Grusdt, H. R. Sadeghpour, and P. Schmelcher,
“Competition of light-and phonon-dressing in microwave-dressed Bose polarons,”
Scipost Physics, vol. 19, no. 4. SciPost Foundation, 2025.
ista: Koutentakis G, Mistakidis SI, Grusdt F, Sadeghpour HR, Schmelcher P. 2025.
Competition of light-and phonon-dressing in microwave-dressed Bose polarons. Scipost
Physics. 19(4), 093.
mla: Koutentakis, Georgios, et al. “Competition of Light-and Phonon-Dressing in
Microwave-Dressed Bose Polarons.” Scipost Physics, vol. 19, no. 4, 093,
SciPost Foundation, 2025, doi:10.21468/SciPostPhys.19.4.093.
short: G. Koutentakis, S.I. Mistakidis, F. Grusdt, H.R. Sadeghpour, P. Schmelcher,
Scipost Physics 19 (2025).
corr_author: '1'
date_created: 2025-11-23T23:01:39Z
date_published: 2025-10-01T00:00:00Z
date_updated: 2025-12-01T15:22:01Z
day: '01'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.21468/SciPostPhys.19.4.093
external_id:
arxiv:
- '2504.03411'
isi:
- '001593017800002'
file:
- access_level: open_access
checksum: 04d0e47ba66c63737431d7b8ed1df4bc
content_type: application/pdf
creator: dernst
date_created: 2025-11-24T08:42:42Z
date_updated: 2025-11-24T08:42:42Z
file_id: '20673'
file_name: 2025_SciPostPhys_Koutentakis.pdf
file_size: 1725787
relation: main_file
success: 1
file_date_updated: 2025-11-24T08:42:42Z
has_accepted_license: '1'
intvolume: ' 19'
isi: 1
issue: '4'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 7c040762-9f16-11ee-852c-dd79eeee4ab3
grant_number: F100403
name: Coherent Optical Metrology Beyond Electric-Dipole-Allowed Transitions
publication: Scipost Physics
publication_identifier:
eissn:
- 2542-4653
publication_status: published
publisher: SciPost Foundation
quality_controlled: '1'
scopus_import: '1'
status: public
title: Competition of light-and phonon-dressing in microwave-dressed Bose polarons
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: 19
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20732'
abstract:
- lang: eng
text: 'We investigate the real-time dynamics of a quenched quantum impurity immersed
in a one-dimensional ultracold Fermi gas, focusing on the breakdown of the adiabatic
Born-Oppenheimer approximation due to nonadiabatic effects. Despite a sizable
impurity-bath mass imbalance, increasing interactions induce strong nonadiabatic
couplings, disrupting adiabatic motion and enabling population transfer between
the adiabatic potential energy curves. These transitions are governed by conical
intersections arising from the pseudo Jahn-Teller effect, dynamically shaping
the impurity''s motion through the bath. Using ab initio simulations via the multilayer
multiconfiguration time-dependent Hartree method and a multichannel Born-Oppenheimer
framework, we track the impurity''s evolution and directly prove the dynamical
manifestation of the pseudo Jahn-Teller effect. We analyze two key scenarios:
(i) a small initial shift, where a single avoided crossing drives transitions,
and (ii) a large shift, where multiple avoided crossings lead to enhanced nonadiabaticity,
self-trapping, and energy redistribution. Our findings establish ultracold fermionic
few-body systems as tunable platforms for studying nonadiabatic quantum dynamics,
opening new avenues for controlled impurity transport in strongly correlated environments.'
acknowledgement: 'This work has been funded by the Cluster of Excellence “Advanced
Imaging of Matter” of the Deutsche Forschungsgemeinschaft (DFG) - EXC 2056 - Project
ID 390715994. G.K.M. has received funding from the Austrian Science Fund (FWF) [DOI:
10.55776/F1004].'
article_number: '033088'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: A.
full_name: Becker, A.
last_name: Becker
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: P.
full_name: Schmelcher, P.
last_name: Schmelcher
citation:
ama: Becker A, Koutentakis G, Schmelcher P. Dynamical probe of the pseudo Jahn-Teller
effect in one-dimensional confined fermions. Physical Review Research.
2025;7(3). doi:10.1103/2fr6-b59y
apa: Becker, A., Koutentakis, G., & Schmelcher, P. (2025). Dynamical probe of
the pseudo Jahn-Teller effect in one-dimensional confined fermions. Physical
Review Research. American Physical Society. https://doi.org/10.1103/2fr6-b59y
chicago: Becker, A., Georgios Koutentakis, and P. Schmelcher. “Dynamical Probe of
the Pseudo Jahn-Teller Effect in One-Dimensional Confined Fermions.” Physical
Review Research. American Physical Society, 2025. https://doi.org/10.1103/2fr6-b59y.
ieee: A. Becker, G. Koutentakis, and P. Schmelcher, “Dynamical probe of the pseudo
Jahn-Teller effect in one-dimensional confined fermions,” Physical Review Research,
vol. 7, no. 3. American Physical Society, 2025.
ista: Becker A, Koutentakis G, Schmelcher P. 2025. Dynamical probe of the pseudo
Jahn-Teller effect in one-dimensional confined fermions. Physical Review Research.
7(3), 033088.
mla: Becker, A., et al. “Dynamical Probe of the Pseudo Jahn-Teller Effect in One-Dimensional
Confined Fermions.” Physical Review Research, vol. 7, no. 3, 033088, American
Physical Society, 2025, doi:10.1103/2fr6-b59y.
short: A. Becker, G. Koutentakis, P. Schmelcher, Physical Review Research 7 (2025).
corr_author: '1'
date_created: 2025-12-07T23:02:02Z
date_published: 2025-07-01T00:00:00Z
date_updated: 2025-12-09T14:16:15Z
day: '01'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/2fr6-b59y
external_id:
arxiv:
- '2503.09835'
file:
- access_level: open_access
checksum: b9f5ccd6957759b0e578bc817a050532
content_type: application/pdf
creator: dernst
date_created: 2025-12-09T14:14:46Z
date_updated: 2025-12-09T14:14:46Z
file_id: '20754'
file_name: 2025_PhysReviewResearch_Becker.pdf
file_size: 2878032
relation: main_file
success: 1
file_date_updated: 2025-12-09T14:14:46Z
has_accepted_license: '1'
intvolume: ' 7'
issue: '3'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 7c040762-9f16-11ee-852c-dd79eeee4ab3
grant_number: F100403
name: Coherent Optical Metrology Beyond Electric-Dipole-Allowed Transitions
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dynamical probe of the pseudo Jahn-Teller effect in one-dimensional confined
fermions
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: 7
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '18821'
abstract:
- lang: eng
text: 'Even though the one-dimensional contact interaction requires no regularization,
renormalization methods have been shown to improve the convergence of numerical
calculations considerably. In this work, we compare and contrast these methods:
“the running coupling constant” where the two-body ground-state energy is used
as a renormalization condition, and two effective interaction approaches that
include information about the ground as well as excited states. In particular,
we calculate the energies and densities of few-fermion systems in a harmonic oscillator
with the configuration-interaction method and compare the results based upon renormalized
and bare interactions. We find that the use of the running coupling constant instead
of the bare interaction improves convergence significantly. A comparison with
an effective interaction, which is designed to reproduce the relative part of
the energy spectrum of two particles, showed a similar improvement. The effective
interaction provides an additional improvement if the center-of-mass excitations
are included in the construction. Finally, we discuss the transformation of observables
alongside the renormalization of the potential, and demonstrate that this might
be an essential ingredient for accurate numerical calculations.'
acknowledgement: We thank J. Cremon and J. Bjerlin for earlier contributions to the
configuration-interaction calculations used in this work (see Refs. [49,50]). F.B.
and S.M.R. acknowledge helpful discussions with Carl Heintze, Sandra Brandstetter,
and Lila Chergui. We further want to thank Lila Chergui for helpful comments on
the paper. This research was financially supported by the Knut and Alice Wallenberg
Foundation (Grant No. KAW 2018.0217) and the Swedish Research Council (Grant No.
2022-03654 VR).
article_number: '013303'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Fabian
full_name: Brauneis, Fabian
last_name: Brauneis
- first_name: Hans Werner
full_name: Hammer, Hans Werner
last_name: Hammer
- first_name: Stephanie M.
full_name: Reimann, Stephanie M.
last_name: Reimann
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Brauneis F, Hammer HW, Reimann SM, Volosniev A. Comparison of renormalized
interactions using one-dimensional few-body systems as a testbed. Physical
Review A. 2025;111(1). doi:10.1103/PhysRevA.111.013303
apa: Brauneis, F., Hammer, H. W., Reimann, S. M., & Volosniev, A. (2025). Comparison
of renormalized interactions using one-dimensional few-body systems as a testbed.
Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.111.013303
chicago: Brauneis, Fabian, Hans Werner Hammer, Stephanie M. Reimann, and Artem Volosniev.
“Comparison of Renormalized Interactions Using One-Dimensional Few-Body Systems
as a Testbed.” Physical Review A. American Physical Society, 2025. https://doi.org/10.1103/PhysRevA.111.013303.
ieee: F. Brauneis, H. W. Hammer, S. M. Reimann, and A. Volosniev, “Comparison of
renormalized interactions using one-dimensional few-body systems as a testbed,”
Physical Review A, vol. 111, no. 1. American Physical Society, 2025.
ista: Brauneis F, Hammer HW, Reimann SM, Volosniev A. 2025. Comparison of renormalized
interactions using one-dimensional few-body systems as a testbed. Physical Review
A. 111(1), 013303.
mla: Brauneis, Fabian, et al. “Comparison of Renormalized Interactions Using One-Dimensional
Few-Body Systems as a Testbed.” Physical Review A, vol. 111, no. 1, 013303,
American Physical Society, 2025, doi:10.1103/PhysRevA.111.013303.
short: F. Brauneis, H.W. Hammer, S.M. Reimann, A. Volosniev, Physical Review A 111
(2025).
date_created: 2025-01-12T23:04:00Z
date_published: 2025-01-03T00:00:00Z
date_updated: 2025-02-27T12:41:58Z
day: '03'
department:
- _id: MiLe
doi: 10.1103/PhysRevA.111.013303
external_id:
arxiv:
- '2408.10052'
isi:
- '001398791400004'
intvolume: ' 111'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2408.10052'
month: '01'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Comparison of renormalized interactions using one-dimensional few-body systems
as a testbed
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 111
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '19276'
abstract:
- lang: eng
text: Impurity motion in a many-body environment has been a central issue in the
field of low-temperature physics for decades. In bosonic quantum fluids, the onset
of a drag force experienced by point-like objects is due to collective environment
excitations, driven by the exchange of linear momentum between the impurity and
the many-body bath. In this work we consider a rotating impurity, with the aim
of exploring how angular momentum is exchanged with the surrounding bosonic environment.
In order to elucidate these issues, we employ a quasiparticle approach based on
the angulon theory, which allows us to effectively deal with the non-trivial algebra
of quantized angular momentum in the presence of a many-body environment. We uncover
how impurity dressing by environmental excitations can establish an exchange channel,
whose effectiveness crucially depends on the initial state of the impurity. Remarkably,
we find that there is a critical value of initial angular momentum, above which
this channel effectively freezes.
acknowledgement: We acknowledge Henrik Stapelfeldt for enlightening discussions. M.L.
acknowledges support by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON). A.C. received funding from the European Union’s Horizon Europe research
and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101062862—NeqMolRot.
article_number: '074104'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Alberto
full_name: Cappellaro, Alberto
id: 9d13b3cb-30a2-11eb-80dc-f772505e8660
last_name: Cappellaro
orcid: 0000-0001-6110-2359
- first_name: Giacomo
full_name: Bighin, Giacomo
id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87
last_name: Bighin
orcid: 0000-0001-8823-9777
- first_name: Igor
full_name: Cherepanov, Igor
id: 339C7E5A-F248-11E8-B48F-1D18A9856A87
last_name: Cherepanov
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Cappellaro A, Bighin G, Cherepanov I, Lemeshko M. Environment-limited transfer
of angular momentum in Bose liquids. Journal of Chemical Physics. 2025;162(7).
doi:10.1063/5.0253451
apa: Cappellaro, A., Bighin, G., Cherepanov, I., & Lemeshko, M. (2025). Environment-limited
transfer of angular momentum in Bose liquids. Journal of Chemical Physics.
AIP Publishing. https://doi.org/10.1063/5.0253451
chicago: Cappellaro, Alberto, Giacomo Bighin, Igor Cherepanov, and Mikhail Lemeshko.
“Environment-Limited Transfer of Angular Momentum in Bose Liquids.” Journal
of Chemical Physics. AIP Publishing, 2025. https://doi.org/10.1063/5.0253451.
ieee: A. Cappellaro, G. Bighin, I. Cherepanov, and M. Lemeshko, “Environment-limited
transfer of angular momentum in Bose liquids,” Journal of Chemical Physics,
vol. 162, no. 7. AIP Publishing, 2025.
ista: Cappellaro A, Bighin G, Cherepanov I, Lemeshko M. 2025. Environment-limited
transfer of angular momentum in Bose liquids. Journal of Chemical Physics. 162(7),
074104.
mla: Cappellaro, Alberto, et al. “Environment-Limited Transfer of Angular Momentum
in Bose Liquids.” Journal of Chemical Physics, vol. 162, no. 7, 074104,
AIP Publishing, 2025, doi:10.1063/5.0253451.
short: A. Cappellaro, G. Bighin, I. Cherepanov, M. Lemeshko, Journal of Chemical
Physics 162 (2025).
corr_author: '1'
date_created: 2025-03-02T23:01:51Z
date_published: 2025-02-21T00:00:00Z
date_updated: 2026-01-20T10:11:27Z
day: '21'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1063/5.0253451
ec_funded: 1
external_id:
arxiv:
- '2501.16066'
isi:
- '001427233100008'
pmid:
- '39964008'
file:
- access_level: open_access
checksum: c67c37788a949af9f0f45b22a27f8087
content_type: application/pdf
creator: dernst
date_created: 2025-03-04T10:48:03Z
date_updated: 2025-03-04T10:48:03Z
file_id: '19292'
file_name: 2025_JourChemicalPhysics_Cappellaro.pdf
file_size: 6455134
relation: main_file
success: 1
file_date_updated: 2025-03-04T10:48:03Z
has_accepted_license: '1'
intvolume: ' 162'
isi: 1
issue: '7'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: bd7b5202-d553-11ed-ba76-9b1c1b258338
grant_number: '101062862'
name: Non-Equilibrium Field Theory of Molecular Rotations
publication: 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: Environment-limited transfer of angular momentum in Bose liquids
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: 162
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19371'
abstract:
- lang: eng
text: We investigate a molecular quantum rotor in a two-dimensional Bose-Einstein
condensate. The focus is on studying the angulon quasiparticle concept in the
crossover from few- to many-body physics. To this end, we formulate the problem
in real space and solve it with a mean-field approach in the frame co-rotating
with the impurity. We show that the system starts to feature angulon characteristics
when the size of the bosonic cloud is large enough to screen the rotor. More importantly,
we demonstrate the departure from the angulon picture for large system sizes or
large angular momenta where the properties of the system are determined by collective
excitations of the Bose gas.
acknowledgement: "We thank Fabian Brauneis, Arthur Christianen and Pietro Massignan
for useful discussions. M. S. and A. G. V. would like to thank the Institut Henri
Poincaré\r\n(UAR 839 CNRS-Sorbonne Université) and the LabEx CARMIN (ANR-10-LABX-59-01)
for\r\ntheir support and hospitality during the final stages of completion of this
work. M.S.\r\nand M.T. acknowledge the National Science Centre, Poland, within Sonata
Bis Grant No.\r\n2020/38/E/ST2/00564. M.L. acknowledges support by the European
Research Council (ERC)\r\nStarting Grant No.801770 (ANGULON). M.S. acknowledges
the National Science Centre,\r\nPoland, within Preludium Grant No. 2023/49/N/ST2/03820.
We gratefully acknowledge\r\nPoland’s high-performance Infrastructure PLGrid ACK
Cyfronet AGH for providing computer\r\nfacilities and support within computational
grant no PLG/2023/016878."
article_number: '059'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Michał
full_name: Suchorowski, Michał
last_name: Suchorowski
- first_name: Alina
full_name: Badamshina, Alina
last_name: Badamshina
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Michał
full_name: Tomza, Michał
last_name: Tomza
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Suchorowski M, Badamshina A, Lemeshko M, Tomza M, Volosniev A. Quantum rotor
in a two-dimensional mesoscopic Bose gas. SciPost Physics. 2025;18(2).
doi:10.21468/SciPostPhys.18.2.059
apa: Suchorowski, M., Badamshina, A., Lemeshko, M., Tomza, M., & Volosniev,
A. (2025). Quantum rotor in a two-dimensional mesoscopic Bose gas. SciPost
Physics. SciPost Foundation. https://doi.org/10.21468/SciPostPhys.18.2.059
chicago: Suchorowski, Michał, Alina Badamshina, Mikhail Lemeshko, Michał Tomza,
and Artem Volosniev. “Quantum Rotor in a Two-Dimensional Mesoscopic Bose Gas.”
SciPost Physics. SciPost Foundation, 2025. https://doi.org/10.21468/SciPostPhys.18.2.059.
ieee: M. Suchorowski, A. Badamshina, M. Lemeshko, M. Tomza, and A. Volosniev, “Quantum
rotor in a two-dimensional mesoscopic Bose gas,” SciPost Physics, vol.
18, no. 2. SciPost Foundation, 2025.
ista: Suchorowski M, Badamshina A, Lemeshko M, Tomza M, Volosniev A. 2025. Quantum
rotor in a two-dimensional mesoscopic Bose gas. SciPost Physics. 18(2), 059.
mla: Suchorowski, Michał, et al. “Quantum Rotor in a Two-Dimensional Mesoscopic
Bose Gas.” SciPost Physics, vol. 18, no. 2, 059, SciPost Foundation, 2025,
doi:10.21468/SciPostPhys.18.2.059.
short: M. Suchorowski, A. Badamshina, M. Lemeshko, M. Tomza, A. Volosniev, SciPost
Physics 18 (2025).
corr_author: '1'
date_created: 2025-03-09T23:01:28Z
date_published: 2025-02-19T00:00:00Z
date_updated: 2025-04-14T07:48:55Z
day: '19'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.21468/SciPostPhys.18.2.059
ec_funded: 1
external_id:
arxiv:
- '2407.06046'
file:
- access_level: open_access
checksum: 7bed8c68c36d495540491bd0579e33e4
content_type: application/pdf
creator: dernst
date_created: 2025-03-10T07:08:21Z
date_updated: 2025-03-10T07:08:21Z
file_id: '19376'
file_name: 2025_SciPostPhys_Suchorowski.pdf
file_size: 1124066
relation: main_file
success: 1
file_date_updated: 2025-03-10T07:08:21Z
has_accepted_license: '1'
intvolume: ' 18'
issue: '2'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: SciPost Physics
publication_identifier:
eissn:
- 2542-4653
publication_status: published
publisher: SciPost Foundation
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantum rotor in a two-dimensional mesoscopic Bose gas
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: 18
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19437'
abstract:
- lang: eng
text: We demonstrate the formation of ferroelectric domain-wall polarons in a minimal
two-dimensional lattice model of electrons interacting with rotating dipoles.
Along the domain wall, the rotors polarize in opposite directions, causing the
electron to localize along a particular lattice direction. The rotor-electron
coupling is identified as the origin of a structural instability in the crystal
that leads to the domain-wall formation via a symmetry-breaking process. Our results
provide the first theoretical description of ferroelectric polarons, as discussed
in the context of soft semiconductors.
acknowledgement: We thank, in alphabetical order, Zhanybek Alpichshev, Cesare Franchini,
Areg Ghazaryan, Sebastian Maehrlein, and Artem Volosniev for fruitful discussions
and comments. G. M. K. received funding from the European Union’s Horizon 2020 research
and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101034413.
R. A. received funding from the Austrian Academy of Science ÖWA Grant No. PR1029OEAW03.
M. L. acknowledges support by the European Research Council (ERC) Starting Grant
No. 801770 (ANGULON).
article_number: '096302'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Florian
full_name: Kluibenschedl, Florian
id: 7499e70e-eb2c-11ec-b98b-f925648bc9d9
last_name: Kluibenschedl
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Kluibenschedl F, Koutentakis G, Al Hyder R, Lemeshko M. Domain-wall ferroelectric
polarons in a two-dimensional rotor lattice model. Physical Review Letters.
2025;134(9). doi:10.1103/PhysRevLett.134.096302
apa: Kluibenschedl, F., Koutentakis, G., Al Hyder, R., & Lemeshko, M. (2025).
Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model. Physical
Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.134.096302
chicago: Kluibenschedl, Florian, Georgios Koutentakis, Ragheed Al Hyder, and Mikhail
Lemeshko. “Domain-Wall Ferroelectric Polarons in a Two-Dimensional Rotor Lattice
Model.” Physical Review Letters. American Physical Society, 2025. https://doi.org/10.1103/PhysRevLett.134.096302.
ieee: F. Kluibenschedl, G. Koutentakis, R. Al Hyder, and M. Lemeshko, “Domain-wall
ferroelectric polarons in a two-dimensional rotor lattice model,” Physical
Review Letters, vol. 134, no. 9. American Physical Society, 2025.
ista: Kluibenschedl F, Koutentakis G, Al Hyder R, Lemeshko M. 2025. Domain-wall
ferroelectric polarons in a two-dimensional rotor lattice model. Physical Review
Letters. 134(9), 096302.
mla: Kluibenschedl, Florian, et al. “Domain-Wall Ferroelectric Polarons in a Two-Dimensional
Rotor Lattice Model.” Physical Review Letters, vol. 134, no. 9, 096302,
American Physical Society, 2025, doi:10.1103/PhysRevLett.134.096302.
short: F. Kluibenschedl, G. Koutentakis, R. Al Hyder, M. Lemeshko, Physical Review
Letters 134 (2025).
corr_author: '1'
date_created: 2025-03-23T23:01:25Z
date_published: 2025-03-07T00:00:00Z
date_updated: 2025-09-30T11:17:58Z
day: '07'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/PhysRevLett.134.096302
ec_funded: 1
external_id:
arxiv:
- '2407.19993'
isi:
- '001492808800010'
pmid:
- '40131090'
file:
- access_level: open_access
checksum: 1901efd7f95e8fe70cac412f91ea4da3
content_type: application/pdf
creator: dernst
date_created: 2025-03-25T12:37:07Z
date_updated: 2025-03-25T12:37:07Z
file_id: '19461'
file_name: 2025_PhysReviewLetters_Kluibenschedl.pdf
file_size: 708750
relation: main_file
success: 1
file_date_updated: 2025-03-25T12:37:07Z
has_accepted_license: '1'
intvolume: ' 134'
isi: 1
issue: '9'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: 8fa7db46-16d5-11f0-9cad-917600954daf
grant_number: '12078'
name: Polarons in Lead Halide Perovskites
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Domain-wall ferroelectric polarons in a two-dimensional rotor lattice model
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 134
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '19502'
abstract:
- lang: eng
text: Alkali dimers, Ak2, located on the surface of a helium nanodroplet, are set
into rotation through the polarizability interaction with a nonresonant 1-ps-long
laser pulse. The time-dependent degree of alignment is recorded using femtosecond-probe-pulse-induced
Coulomb explosion into a pair of Ak+ fragment ions. The results, obtained for
Na2, K2, and Rb2 in both the ground state 11Σ+g and the lowest-lying triplet state
13Σ+u, exhibit distinct, periodic revivals with a gradually decreasing amplitude.
The dynamics differ from that expected for dimers had they behaved as free rotors.
Numerically, we solve the time-dependent rotational Schrödinger equation, including
an effective mean-field potential to describe the interaction between the dimer
and the droplet. The experimental and simulated alignment dynamics agree well
and their comparison enables us to determine the effective rotational constants
of the alkali dimers with the exception of Rb2(13Σ+u) that only exhibits a prompt
alignment peak but no subsequent revivals. For Na2(13Σ+u), K2(11Σ+g), K2(13Σ+u)
and Rb2(11Σ+g), the alignment dynamics are well-described by a 2D rotor model.
We ascribe this to a significant confinement of the internuclear axis of these
dimers, induced by the orientation-dependent droplet-dimer interaction, to the
tangential plane of their residence point on the droplet.
acknowledgement: H.S. acknowledges support from the Villum Foundation through a Villum
Investigator Grant No. 25886. We thank Jan Thøgersen for expert help with the optics
and the laser system.
article_number: '033114'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Henrik H.
full_name: Kristensen, Henrik H.
last_name: Kristensen
- first_name: Lorenz
full_name: Kranabetter, Lorenz
last_name: Kranabetter
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Constant A.
full_name: Schouder, Constant A.
last_name: Schouder
- first_name: Emil
full_name: Hansen, Emil
last_name: Hansen
- first_name: Frank
full_name: Jensen, Frank
last_name: Jensen
- first_name: Robert E.
full_name: Zillich, Robert E.
last_name: Zillich
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Henrik
full_name: Stapelfeldt, Henrik
last_name: Stapelfeldt
citation:
ama: Kristensen HH, Kranabetter L, Ghazaryan A, et al. Nonadiabatic laser-induced
alignment dynamics of alkali-metal dimers on the surface of a helium droplet.
Physical Review A. 2025;111(3). doi:10.1103/PhysRevA.111.033114
apa: Kristensen, H. H., Kranabetter, L., Ghazaryan, A., Schouder, C. A., Hansen,
E., Jensen, F., … Stapelfeldt, H. (2025). Nonadiabatic laser-induced alignment
dynamics of alkali-metal dimers on the surface of a helium droplet. Physical
Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.111.033114
chicago: Kristensen, Henrik H., Lorenz Kranabetter, Areg Ghazaryan, Constant A.
Schouder, Emil Hansen, Frank Jensen, Robert E. Zillich, Mikhail Lemeshko, and
Henrik Stapelfeldt. “Nonadiabatic Laser-Induced Alignment Dynamics of Alkali-Metal
Dimers on the Surface of a Helium Droplet.” Physical Review A. American
Physical Society, 2025. https://doi.org/10.1103/PhysRevA.111.033114.
ieee: H. H. Kristensen et al., “Nonadiabatic laser-induced alignment dynamics
of alkali-metal dimers on the surface of a helium droplet,” Physical Review
A, vol. 111, no. 3. American Physical Society, 2025.
ista: Kristensen HH, Kranabetter L, Ghazaryan A, Schouder CA, Hansen E, Jensen F,
Zillich RE, Lemeshko M, Stapelfeldt H. 2025. Nonadiabatic laser-induced alignment
dynamics of alkali-metal dimers on the surface of a helium droplet. Physical Review
A. 111(3), 033114.
mla: Kristensen, Henrik H., et al. “Nonadiabatic Laser-Induced Alignment Dynamics
of Alkali-Metal Dimers on the Surface of a Helium Droplet.” Physical Review
A, vol. 111, no. 3, 033114, American Physical Society, 2025, doi:10.1103/PhysRevA.111.033114.
short: H.H. Kristensen, L. Kranabetter, A. Ghazaryan, C.A. Schouder, E. Hansen,
F. Jensen, R.E. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review A 111 (2025).
date_created: 2025-04-06T22:01:32Z
date_published: 2025-03-21T00:00:00Z
date_updated: 2025-09-30T11:27:25Z
day: '21'
department:
- _id: MiLe
doi: 10.1103/PhysRevA.111.033114
external_id:
arxiv:
- '2502.14521'
isi:
- '001459727400007'
intvolume: ' 111'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2502.14521
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nonadiabatic laser-induced alignment dynamics of alkali-metal dimers on the
surface of a helium droplet
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 111
year: '2025'
...
---
OA_place: publisher
OA_type: gold
_id: '19393'
abstract:
- lang: eng
text: "Rotations constitute one of the fundamental symmetries in physics, characterized
by their intricate group structure and infinite dimensional representations. In
contrast to classical rotations, quantum mechanics unveils the SO(3) symmetry
group structure, manifesting in phenomena without classical counterparts, from
angular momentum quantization to non-trivial addition of angular momenta.\r\nWhile
most studies of topological physics have focused on two-band systems, the SO(3)
symmetry group of quantum rotors offers an inherently more complex platform with
unprecedented possibilities for exploring topological phenomena. Despite their
ubiquity in nature– from molecules to nanorotors– their potential for hosting
topological phases has remained largely unexamined.\r\nIn this thesis, we mainly
focus on periodically driven linear molecules as a prototype for studying topological
phenomena in quantum rotors. Recent technological advances in coherent control
of molecules, particularly through precisely shaped laser pulses, have made it
possible to investigate linear rotors in the context of topology. While planar
rotors have received some attention in recent years, threedimensional rotors–particularly
linear molecules–harbor substantially richer topological phenomena due to their
non-abelian nature and their additional angular degrees of freedom. We demonstrate
that these systems can host novel edge states and topological features fundamentally
impossible in planar systems.\r\nWe begin by establishing a theoretical bridge
between periodically kicked rotors and \"crystalline\" lattices in angular momentum
space. Using non-interacting linear molecules as our primary example, we show
how quantum interference and revival patterns lead to the possibility to simulate
band models with arbitrary number of bands N. While our framework applies to various
quantum rotors, including nanorotors and kicked Bose-Einstein condensates, linear\r\nmolecules
provide an ideal experimental platform due to their abovementioned precise controllability.\r\nThe
core of this work examines adiabatic dynamics of 3D quantum rotors, establishing
a geometric framework based on the Euler class to characterize its non-abelian
topology. The non-Hermitian nature of the system enables novel braiding behaviors
and topological transitions impossible in static systems, leading to an anomalous
Dirac string phase with edge states in each gap, even though the Berry phases
are all zero. These features can be directly observed through\r\nmolecular alignment
and rotational level populations.\r\nThese findings establish quantum rotors as
an alternative platform for studying multi-band topological physics, while suggesting
practical implementations for quantum computation where topological protection
could offer natural resilience against decoherence. The rich structure of three-dimensional
rotation groups, combined with the tunability of topological features through
driving parameters, makes this platform particularly valuable for exploring fundamental\r\nphysics
and developing quantum technologies."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Volker
full_name: Karle, Volker
id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425
last_name: Karle
orcid: 0000-0002-6963-0129
citation:
ama: Karle V. Non-equilibrium topological phases with periodically driven molecules
and quantum rotors. 2025. doi:10.15479/AT-ISTA-19393
apa: Karle, V. (2025). Non-equilibrium topological phases with periodically driven
molecules and quantum rotors. Institute of Science and Technology Austria.
https://doi.org/10.15479/AT-ISTA-19393
chicago: Karle, Volker. “Non-Equilibrium Topological Phases with Periodically Driven
Molecules and Quantum Rotors.” Institute of Science and Technology Austria, 2025.
https://doi.org/10.15479/AT-ISTA-19393.
ieee: V. Karle, “Non-equilibrium topological phases with periodically driven molecules
and quantum rotors,” Institute of Science and Technology Austria, 2025.
ista: Karle V. 2025. Non-equilibrium topological phases with periodically driven
molecules and quantum rotors. Institute of Science and Technology Austria.
mla: Karle, Volker. Non-Equilibrium Topological Phases with Periodically Driven
Molecules and Quantum Rotors. Institute of Science and Technology Austria,
2025, doi:10.15479/AT-ISTA-19393.
short: V. Karle, Non-Equilibrium Topological Phases with Periodically Driven Molecules
and Quantum Rotors, Institute of Science and Technology Austria, 2025.
corr_author: '1'
date_created: 2025-03-12T13:04:59Z
date_published: 2025-03-13T00:00:00Z
date_updated: 2026-04-07T11:48:53Z
day: '13'
ddc:
- '530'
degree_awarded: PhD
department:
- _id: GradSch
- _id: MiLe
doi: 10.15479/AT-ISTA-19393
file:
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checksum: d3ab25782c7ea38ce9910e57d25f6733
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creator: vkarle
date_created: 2025-03-12T12:56:46Z
date_updated: 2025-03-12T12:56:46Z
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file_name: thesis_final.pdf
file_size: 10625143
relation: main_file
success: 1
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checksum: 3ccfb0aeba4d860d71e18347913034e4
content_type: application/zip
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date_created: 2025-03-13T13:15:10Z
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file_name: thesis.zip
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language:
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license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '03'
oa: 1
oa_version: Published Version
page: '192'
publication_identifier:
eissn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
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relation: part_of_dissertation
status: public
- id: '12788'
relation: part_of_dissertation
status: public
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relation: part_of_dissertation
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- id: '9903'
relation: part_of_dissertation
status: public
- id: '15004'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
title: Non-equilibrium topological phases with periodically driven molecules and quantum
rotors
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2025'
...