---
APC_amount: 4695,11 EUR
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20708'
abstract:
- lang: eng
text: In equilibrium, the physical properties of matter are set by the interactions
between the constituents. In contrast, the energy input of the individual components
controls the behavior of synthetic or living active matter. Great progress has
been made in understanding the emergent phenomena in active fluids, though their
inability to resist shear forces hinders their practical use. This motivates the
exploration of active solids as shape-shifting materials, yet, we lack controlled
synthetic systems to devise active solids with unconventional properties. Here
we build active elastic beams from dozens of active colloids and unveil complex
emergent behaviors such as self-oscillations or persistent rotations. Developing
tensile tests at the microscale, we show that the active beams are ultrasoft materials,
with large (nonequilibrium) fluctuations. Combining experiments, theory, and stochastic
inference, we show that the dynamics of the active beams can be mapped on different
phase transitions which are tuned by boundary conditions. More quantitatively,
we assess all relevant parameters by independent measurements or first-principles
calculations, and find that our theoretical description agrees with the experimental
observations. Our results demonstrate that the simple addition of activity to
an elastic beam unveils novel physics and can inspire design strategies for active
solids and functional microscopic machines.
acknowledgement: The authors thank Andela Saric, Christoph Zechner, and Paul Robin
for helpful discussions. J. P. acknowledges support by ERC grant (VULCAN, 101086998)
and U.S. ARO under Award No. W911NF2310008. Y. I. L. acknowledges funding from the
European Union’s Horizon 2020 research and innovation programme under the Marie
Skłodowska-Curie Grant Agreement No. 101034413.
article_number: '041017'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Quentin
full_name: Martinet, Quentin
id: b37485a8-d343-11eb-a0e9-df8c484ef8ab
last_name: Martinet
orcid: 0000-0002-2916-6632
- first_name: Yuting I
full_name: Li, Yuting I
id: ee7a5ca8-8b71-11ed-b662-b3341c05b7eb
last_name: Li
- first_name: A.
full_name: Aubret, A.
last_name: Aubret
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Jérémie A
full_name: Palacci, Jérémie A
id: 8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d
last_name: Palacci
orcid: 0000-0002-7253-9465
citation:
ama: Martinet Q, Li YI, Aubret A, Hannezo EB, Palacci JA. Emergent dynamics of active
elastic microbeams. Physical Review X. 2025;15(4). doi:10.1103/rjk2-q2wh
apa: Martinet, Q., Li, Y. I., Aubret, A., Hannezo, E. B., & Palacci, J. A. (2025).
Emergent dynamics of active elastic microbeams. Physical Review X. American
Physical Society. https://doi.org/10.1103/rjk2-q2wh
chicago: Martinet, Quentin, Yuting I Li, A. Aubret, Edouard B Hannezo, and Jérémie
A Palacci. “Emergent Dynamics of Active Elastic Microbeams.” Physical Review
X. American Physical Society, 2025. https://doi.org/10.1103/rjk2-q2wh.
ieee: Q. Martinet, Y. I. Li, A. Aubret, E. B. Hannezo, and J. A. Palacci, “Emergent
dynamics of active elastic microbeams,” Physical Review X, vol. 15, no.
4. American Physical Society, 2025.
ista: Martinet Q, Li YI, Aubret A, Hannezo EB, Palacci JA. 2025. Emergent dynamics
of active elastic microbeams. Physical Review X. 15(4), 041017.
mla: Martinet, Quentin, et al. “Emergent Dynamics of Active Elastic Microbeams.”
Physical Review X, vol. 15, no. 4, 041017, American Physical Society, 2025,
doi:10.1103/rjk2-q2wh.
short: Q. Martinet, Y.I. Li, A. Aubret, E.B. Hannezo, J.A. Palacci, Physical Review
X 15 (2025).
corr_author: '1'
date_created: 2025-11-30T23:02:08Z
date_published: 2025-10-31T00:00:00Z
date_updated: 2026-05-20T08:58:06Z
day: '31'
ddc:
- '530'
department:
- _id: EdHa
- _id: JePa
doi: 10.1103/rjk2-q2wh
ec_funded: 1
external_id:
arxiv:
- '2508.20642'
file:
- access_level: open_access
checksum: bb64ea9f2c400205fd89e9bdd15cc850
content_type: application/pdf
creator: dernst
date_created: 2025-12-01T07:30:00Z
date_updated: 2025-12-01T07:30:00Z
file_id: '20714'
file_name: 2025_PhysicalReviewX_Martinet.pdf
file_size: 5902259
relation: main_file
success: 1
file_date_updated: 2025-12-01T07:30:00Z
has_accepted_license: '1'
intvolume: ' 15'
issue: '4'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: bdac72da-d553-11ed-ba76-eae56e802b74
grant_number: '101086998'
name: 'VULCAN: matter, powered from within'
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Emergent dynamics of active elastic microbeams
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: 15
year: '2025'
...
---
APC_amount: 4910,08 EUR
OA_place: publisher
OA_type: gold
_id: '8125'
abstract:
- lang: eng
text: "Biological memory is known to be flexible—memory formation and recall depend
on factors such as the behavioral context of the organism. However, this property
is often ignored in associative memory models, leaving it unclear how memories
can be organized and recalled when subject to contextual control. Because of the
lack of a rigorous analytical framework, it is also unknown how contextual control
affects memory stability, storage capacity, and information content. Here, we
bring the dynamic nature of memory to the fore by introducing a novel model of
associative memory, which we refer to as the context-modular memory network. In
our model, stored memory patterns are associated to one of several background
network states, or contexts. Memories are accessible when their corresponding
context is active, and are otherwise inaccessible. Context modulates the effective
network connectivity by imposing a specific\r\nconfiguration of neuronal and synaptic
gating—gated neurons (synapses) have their activity (weights) momentarily silenced,
thereby reducing interference from memories belonging to other contexts. Memory
patterns are randomly and independently chosen, while neuronal and synaptic gates
may be selected randomly or optimized through a process of contextual synaptic
refinement. Through analytic and numerical results, we show that context-modular
memory networks can exhibit both improved memory capacity and differential control
of memory stability with random gating (especially for neuronal gating). For contextual
synaptic refinement, we devise a method in which synapses are gated off for a
given context if they destabilize the memory patterns in that context, drastically
improving memory capacity and enabling even more precise control over memory stability.
Notably, synaptic refinement allows for patterns to be\r\naccessible in multiple
contexts, stabilizing memory patterns even for weight matrices that alone do not
contain any information about the memory patterns, such as Gaussian random matrices.
Overall, our model integrates recent ideas about context-dependent memory organization
with classic associative memory models and proposes a rigorous theory which can
act as a framework for future work. Furthermore, our work carries important implications
for the understanding of biological memory storage and recall in the brain, such
as highlighting an intriguing trade-off between memory capacity and accessibility."
acknowledgement: "We thank Helen Barron, Vezha Boboeva, Adam Packer, João Sacramento,
Andrew Saxe, Misha Tsodyks, and Friedemann Zenke for helpful comments at various
stages of this work, and Rubem Erichsen, Jr. for carefully reading the manuscript
and valuable comments. This work was\r\nsupported by a Sir Henry Dale Fellowship
by the Wellcome Trust and the Royal Society [No. WT100000 (W. F. P., E. J. A., and
T. P. V.)], a Wellcome Trust Senior Research Fellowship [No. 214316/Z/18/Z (E. J.
A. and T. P. V.)], and a Research Project Grant by the Leverhulme Trust\r\n[No.
RPG-2016-446 (E. J. A.)]. "
article_number: '011057'
article_processing_charge: Yes
article_type: original
author:
- first_name: William F.
full_name: Podlaski, William F.
last_name: Podlaski
orcid: 0000-0001-6619-7502
- first_name: Everton J.
full_name: Agnes, Everton J.
last_name: Agnes
orcid: 0000-0001-7184-7311
- first_name: Tim P
full_name: Vogels, Tim P
id: CB6FF8D2-008F-11EA-8E08-2637E6697425
last_name: Vogels
orcid: 0000-0003-3295-6181
citation:
ama: Podlaski WF, Agnes EJ, Vogels TP. High capacity and dynamic accessibility in
associative memory networks with context-dependent neuronal and synaptic gating.
Physical Review X. 2025;15. doi:10.1103/PhysRevX.15.011057
apa: Podlaski, W. F., Agnes, E. J., & Vogels, T. P. (2025). High capacity and
dynamic accessibility in associative memory networks with context-dependent neuronal
and synaptic gating. Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.15.011057
chicago: Podlaski, William F., Everton J. Agnes, and Tim P Vogels. “High Capacity
and Dynamic Accessibility in Associative Memory Networks with Context-Dependent
Neuronal and Synaptic Gating.” Physical Review X. American Physical Society,
2025. https://doi.org/10.1103/PhysRevX.15.011057.
ieee: W. F. Podlaski, E. J. Agnes, and T. P. Vogels, “High capacity and dynamic
accessibility in associative memory networks with context-dependent neuronal and
synaptic gating,” Physical Review X, vol. 15. American Physical Society,
2025.
ista: Podlaski WF, Agnes EJ, Vogels TP. 2025. High capacity and dynamic accessibility
in associative memory networks with context-dependent neuronal and synaptic gating.
Physical Review X. 15, 011057.
mla: Podlaski, William F., et al. “High Capacity and Dynamic Accessibility in Associative
Memory Networks with Context-Dependent Neuronal and Synaptic Gating.” Physical
Review X, vol. 15, 011057, American Physical Society, 2025, doi:10.1103/PhysRevX.15.011057.
short: W.F. Podlaski, E.J. Agnes, T.P. Vogels, Physical Review X 15 (2025).
corr_author: '1'
date_created: 2020-07-16T12:24:28Z
date_published: 2025-03-13T00:00:00Z
date_updated: 2026-05-06T12:44:27Z
day: '13'
ddc:
- '530'
department:
- _id: TiVo
doi: 10.1103/PhysRevX.15.011057
external_id:
isi:
- '001451378900002'
file:
- access_level: open_access
checksum: 1f27ee469ab51a3e1ce1e2df0022e81d
content_type: application/pdf
creator: dernst
date_created: 2025-03-20T12:47:17Z
date_updated: 2025-03-20T12:47:17Z
file_id: '19432'
file_name: 2025_PhysReviewX_Podlaski.pdf
file_size: 1373704
relation: main_file
success: 1
file_date_updated: 2025-03-20T12:47:17Z
has_accepted_license: '1'
intvolume: ' 15'
isi: 1
language:
- iso: eng
locked: '1'
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: B67AFEDC-15C9-11EA-A837-991A96BB2854
name: IST Austria Open Access Fund
- _id: c084a126-5a5b-11eb-8a69-d75314a70a87
grant_number: 214316/Z/18/Z
name: What’s in a memory? Spatiotemporal dynamics in strongly coupled recurrent
neuronal networks.
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/wpodlaski/contextual-memory-nets
scopus_import: '1'
status: public
title: High capacity and dynamic accessibility in associative memory networks with
context-dependent neuronal and synaptic gating
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: 15
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19816'
abstract:
- lang: eng
text: 'Understanding and manipulating emergent phases, which are themes at the forefront
of quantum-materials research, rely on identifying their underlying symmetries.
This general principle has been particularly prominent in materials with coupled
electronic and magnetic degrees of freedom, in which magnetic order influences
the electronic band structure and can lead to exotic topological effects. However,
identifying symmetry of a magnetically ordered phase can pose a challenge, particularly
in the presence of small domains. Here we introduce a multimodal approach for
determining magnetic structures, which combines symmetry-sensitive optical probes,
scattering, and group-theoretical analysis. We apply it to EuIn2As2, a material
that has received attention as a candidate axion insulator. While first-principles
calculations predict this state on the assumption of a simple collinear antiferromagnetic
structure, subsequent neutron-scattering measurements reveal a much more intricate
magnetic ground state characterized by two coexisting magnetic wave vectors reached
by successive thermal phase transitions. The proposed high- and low-temperature
phases are a spin helix and a state with interpenetrating helical and Néel antiferromagnetic
order termed a “broken helix,” respectively. Employing a multimodal approach,
we identify the magnetic structure associated with these two phases of EuIn2As2.
We find that the higher-temperature phase is characterized by a variation of the
magnetic moment amplitude from layer to layer, with the moment vanishing entirely
in every third Eu layer. The lower-temperature structure is similar to the broken
helix, with one important difference: Because of local strain, the relative orientation
of the magnetic structure and the lattice is not fixed. Consequently, the symmetry
required to protect the axion phase is not generically protected in EuIn2As2,
but we show that it can be restored if the magnetic structure is tuned with uniaxial
strain. Finally, we present a spin Hamiltonian that identifies the spin interactions
that account for the complex magnetic order in EuIn2As2. Our work highlights
the importance of a multimodal approach in determining the symmetry of complex
order parameters.'
article_number: '031013'
article_processing_charge: No
article_type: original
author:
- first_name: E.
full_name: Donoway, E.
last_name: Donoway
- first_name: T. V.
full_name: Trevisan, T. V.
last_name: Trevisan
- first_name: A.
full_name: Liebman-Peláez, A.
last_name: Liebman-Peláez
- first_name: R. P.
full_name: Day, R. P.
last_name: Day
- first_name: K.
full_name: Yamakawa, K.
last_name: Yamakawa
- first_name: Y.
full_name: Sun, Y.
last_name: Sun
- first_name: J. R.
full_name: Soh, J. R.
last_name: Soh
- first_name: D.
full_name: Prabhakaran, D.
last_name: Prabhakaran
- first_name: A. T.
full_name: Boothroyd, A. T.
last_name: Boothroyd
- first_name: R. M.
full_name: Fernandes, R. M.
last_name: Fernandes
- first_name: J. G.
full_name: Analytis, J. G.
last_name: Analytis
- first_name: J. E.
full_name: Moore, J. E.
last_name: Moore
- first_name: J.
full_name: Orenstein, J.
last_name: Orenstein
- first_name: Veronika
full_name: Sunko, Veronika
id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
last_name: Sunko
orcid: 0000-0003-2724-3523
citation:
ama: Donoway E, Trevisan TV, Liebman-Peláez A, et al. Multimodal approach reveals
the symmetry-breaking pathway to the broken helix in EuIn2As2. Physical Review
X. 2024;14(3). doi:10.1103/physrevx.14.031013
apa: Donoway, E., Trevisan, T. V., Liebman-Peláez, A., Day, R. P., Yamakawa, K.,
Sun, Y., … Sunko, V. (2024). Multimodal approach reveals the symmetry-breaking
pathway to the broken helix in EuIn2As2. Physical Review X. American Physical
Society. https://doi.org/10.1103/physrevx.14.031013
chicago: Donoway, E., T. V. Trevisan, A. Liebman-Peláez, R. P. Day, K. Yamakawa,
Y. Sun, J. R. Soh, et al. “Multimodal Approach Reveals the Symmetry-Breaking Pathway
to the Broken Helix in EuIn2As2.” Physical Review X. American Physical
Society, 2024. https://doi.org/10.1103/physrevx.14.031013.
ieee: E. Donoway et al., “Multimodal approach reveals the symmetry-breaking
pathway to the broken helix in EuIn2As2,” Physical Review X, vol. 14, no.
3. American Physical Society, 2024.
ista: Donoway E, Trevisan TV, Liebman-Peláez A, Day RP, Yamakawa K, Sun Y, Soh JR,
Prabhakaran D, Boothroyd AT, Fernandes RM, Analytis JG, Moore JE, Orenstein J,
Sunko V. 2024. Multimodal approach reveals the symmetry-breaking pathway to the
broken helix in EuIn2As2. Physical Review X. 14(3), 031013.
mla: Donoway, E., et al. “Multimodal Approach Reveals the Symmetry-Breaking Pathway
to the Broken Helix in EuIn2As2.” Physical Review X, vol. 14, no. 3, 031013,
American Physical Society, 2024, doi:10.1103/physrevx.14.031013.
short: E. Donoway, T.V. Trevisan, A. Liebman-Peláez, R.P. Day, K. Yamakawa, Y. Sun,
J.R. Soh, D. Prabhakaran, A.T. Boothroyd, R.M. Fernandes, J.G. Analytis, J.E.
Moore, J. Orenstein, V. Sunko, Physical Review X 14 (2024).
date_created: 2025-06-10T09:17:30Z
date_published: 2024-07-22T00:00:00Z
date_updated: 2025-06-10T13:14:20Z
day: '22'
doi: 10.1103/physrevx.14.031013
extern: '1'
intvolume: ' 14'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/physrevx.14.031013
month: '07'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multimodal approach reveals the symmetry-breaking pathway to the broken helix
in EuIn2As2
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2024'
...
---
DOAJ_listed: '1'
_id: '17477'
abstract:
- lang: eng
text: Trapped-ion systems are a leading platform for quantum information processing,
but they are currently limited to 1D and 2D arrays, which imposes restrictions
on both their scalability and their range of applications. Here, we propose a
path to overcome this limitation by demonstrating that Penning traps can be used
to realize remarkably clean bilayer crystals, wherein hundreds of ions self-organize
into two well-defined layers. These bilayer crystals are made possible by the
inclusion of an anharmonic trapping potential, which is readily implementable
with current technology. We study the normal modes of this system and discover
salient differences compared to the modes of single-plane crystals. The bilayer
geometry and the unique properties of the normal modes open new opportunities—in
particular, in quantum sensing and quantum simulation—that are not straightforward
in single-plane crystals. Furthermore, we illustrate that it may be possible to
extend the ideas presented here to realize multilayer crystals with more than
two layers. Our work increases the dimensionality of trapped-ion systems by efficiently
utilizing all three spatial dimensions, and it lays the foundation for a new generation
of quantum information processing experiments with multilayer 3D crystals of trapped
ions.
acknowledgement: We thank M. Miskeen Khan, Jennifer Lilieholm, and Wes Johnson for
a careful reading and feedback on the manuscript. We acknowledge discussions with
Dan Dubin, John Zaris, and Scott Parker. S. H. acknowledges the support of Kishore
Vaigyanik Protsahan Yojana, Department of Science and Technology, Government of
India. A. S. acknowledges the support of a C. V. Raman post-doctoral fellowship.
A. L. C., A. M. R., and J. J. B. acknowledge funding from the U.S. Department of
Energy, Office of Science, NQI Science Research Centers, Quantum Systems Accelerator
(QSA), a collaboration between the U.S. Department of Energy, Office of Science
and other agencies. A. M. R. acknowledges additional support from VBFF, ARO Grant
No. W911NF-24-1-0128, by the NSF Grants No. JILA-PFC PHY-2317149 and No. QLCI-OMA-2016244,
and by NIST. J. J. B. acknowledges additional support from the DARPA ONISQ program
and AFOSR Grant No. FA9550-201-0019.
article_number: '031030'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Samarth
full_name: Hawaldar, Samarth
id: 221708e1-1ff6-11ee-9fa6-85146607433e
last_name: Hawaldar
orcid: 0000-0002-1965-4309
- first_name: Prakriti
full_name: Shahi, Prakriti
last_name: Shahi
- first_name: Allison L.
full_name: Carter, Allison L.
last_name: Carter
- first_name: Ana Maria
full_name: Rey, Ana Maria
last_name: Rey
- first_name: John J.
full_name: Bollinger, John J.
last_name: Bollinger
- first_name: Athreya
full_name: Shankar, Athreya
last_name: Shankar
citation:
ama: Hawaldar S, Shahi P, Carter AL, Rey AM, Bollinger JJ, Shankar A. Bilayer crystals
of trapped ions for quantum information processing. Physical Review X.
2024;14(3). doi:10.1103/PhysRevX.14.031030
apa: Hawaldar, S., Shahi, P., Carter, A. L., Rey, A. M., Bollinger, J. J., &
Shankar, A. (2024). Bilayer crystals of trapped ions for quantum information processing.
Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.14.031030
chicago: Hawaldar, Samarth, Prakriti Shahi, Allison L. Carter, Ana Maria Rey, John
J. Bollinger, and Athreya Shankar. “Bilayer Crystals of Trapped Ions for Quantum
Information Processing.” Physical Review X. American Physical Society,
2024. https://doi.org/10.1103/PhysRevX.14.031030.
ieee: S. Hawaldar, P. Shahi, A. L. Carter, A. M. Rey, J. J. Bollinger, and A. Shankar,
“Bilayer crystals of trapped ions for quantum information processing,” Physical
Review X, vol. 14, no. 3. American Physical Society, 2024.
ista: Hawaldar S, Shahi P, Carter AL, Rey AM, Bollinger JJ, Shankar A. 2024. Bilayer
crystals of trapped ions for quantum information processing. Physical Review X.
14(3), 031030.
mla: Hawaldar, Samarth, et al. “Bilayer Crystals of Trapped Ions for Quantum Information
Processing.” Physical Review X, vol. 14, no. 3, 031030, American Physical
Society, 2024, doi:10.1103/PhysRevX.14.031030.
short: S. Hawaldar, P. Shahi, A.L. Carter, A.M. Rey, J.J. Bollinger, A. Shankar,
Physical Review X 14 (2024).
corr_author: '1'
date_created: 2024-09-01T22:01:08Z
date_published: 2024-08-16T00:00:00Z
date_updated: 2025-09-08T09:07:29Z
day: '16'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1103/PhysRevX.14.031030
external_id:
arxiv:
- '2312.10681'
isi:
- '001293977800002'
file:
- access_level: open_access
checksum: 5d39b7dda67fd7b9a960235f6f38e280
content_type: application/pdf
creator: cchlebak
date_created: 2024-09-06T09:43:53Z
date_updated: 2024-09-06T09:43:53Z
file_id: '17757'
file_name: 2024_PhysRevX_Hawaldar.pdf
file_size: 3909653
relation: main_file
success: 1
file_date_updated: 2024-09-06T09:43:53Z
has_accepted_license: '1'
intvolume: ' 14'
isi: 1
issue: '3'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Bilayer crystals of trapped ions for quantum information processing
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: 14
year: '2024'
...
---
_id: '12839'
abstract:
- lang: eng
text: Universal nonequilibrium properties of isolated quantum systems are typically
probed by studying transport of conserved quantities, such as charge or spin,
while transport of energy has received considerably less attention. Here, we study
infinite-temperature energy transport in the kinetically constrained PXP model
describing Rydberg atom quantum simulators. Our state-of-the-art numerical simulations,
including exact diagonalization and time-evolving block decimation methods, reveal
the existence of two distinct transport regimes. At moderate times, the energy-energy
correlation function displays periodic oscillations due to families of eigenstates
forming different su(2) representations hidden within the spectrum. These families
of eigenstates generalize the quantum many-body scarred states found in previous
works and leave an imprint on the infinite-temperature energy transport. At later
times, we observe a long-lived superdiffusive transport regime that we attribute
to the proximity of a nearby integrable point. While generic strong deformations
of the PXP model indeed restore diffusive transport, adding a strong chemical
potential intriguingly gives rise to a well-converged superdiffusive exponent
z≈3/2. Our results suggest constrained models to be potential hosts of novel transport
regimes and call for developing an analytic understanding of their energy transport.
acknowledgement: "We would like to thank Alexios Michailidis, Sarang Gopalakrishnan,
and Achilleas Lazarides for useful comments. M. L. and M. S. acknowledge support
by the European Research Council under the European Union’s Horizon 2020 research
and innovation program (Grant\r\nAgreement No. 850899). J.-Y. D. and Z. P. acknowledge
support by EPSRC Grant No. EP/R513258/1 and the Leverhulme Trust Research Leadership
Grant No. RL2019-015. Statement of compliance with EPSRC policy framework on research
data: This publication is theoretical work that does not require supporting research
data. M. S., M. L., and Z. P. acknowledge support by the Erwin Schrödinger International
Institute for Mathematics and\r\nPhysics. M. L. and M. S. acknowledge PRACE for
awarding us access to Joliot-Curie at GENCI@CEA, France, where the TEBD simulations
were performed. The TEBD\r\nsimulations were performed using the ITENSOR library
[54]."
article_number: '011033'
article_processing_charge: No
article_type: original
author:
- first_name: Marko
full_name: Ljubotina, Marko
id: F75EE9BE-5C90-11EA-905D-16643DDC885E
last_name: Ljubotina
orcid: 0000-0003-0038-7068
- first_name: Jean Yves
full_name: Desaules, Jean Yves
last_name: Desaules
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
citation:
ama: Ljubotina M, Desaules JY, Serbyn M, Papić Z. Superdiffusive energy transport
in kinetically constrained models. Physical Review X. 2023;13(1). doi:10.1103/PhysRevX.13.011033
apa: Ljubotina, M., Desaules, J. Y., Serbyn, M., & Papić, Z. (2023). Superdiffusive
energy transport in kinetically constrained models. Physical Review X.
American Physical Society. https://doi.org/10.1103/PhysRevX.13.011033
chicago: Ljubotina, Marko, Jean Yves Desaules, Maksym Serbyn, and Zlatko Papić.
“Superdiffusive Energy Transport in Kinetically Constrained Models.” Physical
Review X. American Physical Society, 2023. https://doi.org/10.1103/PhysRevX.13.011033.
ieee: M. Ljubotina, J. Y. Desaules, M. Serbyn, and Z. Papić, “Superdiffusive energy
transport in kinetically constrained models,” Physical Review X, vol. 13,
no. 1. American Physical Society, 2023.
ista: Ljubotina M, Desaules JY, Serbyn M, Papić Z. 2023. Superdiffusive energy transport
in kinetically constrained models. Physical Review X. 13(1), 011033.
mla: Ljubotina, Marko, et al. “Superdiffusive Energy Transport in Kinetically Constrained
Models.” Physical Review X, vol. 13, no. 1, 011033, American Physical Society,
2023, doi:10.1103/PhysRevX.13.011033.
short: M. Ljubotina, J.Y. Desaules, M. Serbyn, Z. Papić, Physical Review X 13 (2023).
corr_author: '1'
date_created: 2023-04-16T22:01:09Z
date_published: 2023-03-07T00:00:00Z
date_updated: 2025-04-14T07:52:07Z
day: '07'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.1103/PhysRevX.13.011033
ec_funded: 1
external_id:
isi:
- '000957625700001'
file:
- access_level: open_access
checksum: ee060cea609af79bba7af74b1ce28078
content_type: application/pdf
creator: dernst
date_created: 2023-04-17T08:36:53Z
date_updated: 2023-04-17T08:36:53Z
file_id: '12845'
file_name: 2023_PhysReviewX_Ljubotina.pdf
file_size: 1958523
relation: main_file
success: 1
file_date_updated: 2023-04-17T08:36:53Z
has_accepted_license: '1'
intvolume: ' 13'
isi: 1
issue: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Superdiffusive energy transport in kinetically constrained models
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 13
year: '2023'
...
---
_id: '14515'
abstract:
- lang: eng
text: Most natural and engineered information-processing systems transmit information
via signals that vary in time. Computing the information transmission rate or
the information encoded in the temporal characteristics of these signals requires
the mutual information between the input and output signals as a function of time,
i.e., between the input and output trajectories. Yet, this is notoriously difficult
because of the high-dimensional nature of the trajectory space, and all existing
techniques require approximations. We present an exact Monte Carlo technique called
path weight sampling (PWS) that, for the first time, makes it possible to compute
the mutual information between input and output trajectories for any stochastic
system that is described by a master equation. The principal idea is to use the
master equation to evaluate the exact conditional probability of an individual
output trajectory for a given input trajectory and average this via Monte Carlo
sampling in trajectory space to obtain the mutual information. We present three
variants of PWS, which all generate the trajectories using the standard stochastic
simulation algorithm. While direct PWS is a brute-force method, Rosenbluth-Rosenbluth
PWS exploits the analogy between signal trajectory sampling and polymer sampling,
and thermodynamic integration PWS is based on a reversible work calculation in
trajectory space. PWS also makes it possible to compute the mutual information
between input and output trajectories for systems with hidden internal states
as well as systems with feedback from output to input. Applying PWS to the bacterial
chemotaxis system, consisting of 182 coupled chemical reactions, demonstrates
not only that the scheme is highly efficient but also that the number of receptor
clusters is much smaller than hitherto believed, while their size is much larger.
acknowledgement: "We thank Bela Mulder, Tom Shimizu, Fotios Avgidis, Peter Bolhuis,
and Daan Frenkel for useful discussions and a careful reading of the manuscript,
and we thank Age Tjalma for support with obtaining the Gaussian approximation of
the chemotaxis system. This work is part of the Dutch Research Council (NWO) and
was performed at the research institute AMOLF. This project has received funding
from the European Research Council (ERC) under the European Union’s Horizon 2020
research and innovation program (Grant Agreement No. 885065) and was\r\nfinancially
supported by NWO through the “Building a Synthetic Cell (BaSyC)” Gravitation Grant
(024.003.019)."
article_number: '041017'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Manuel
full_name: Reinhardt, Manuel
last_name: Reinhardt
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: 0000-0002-6699-1455
- first_name: Pieter Rein
full_name: Ten Wolde, Pieter Rein
last_name: Ten Wolde
citation:
ama: 'Reinhardt M, Tkačik G, Ten Wolde PR. Path weight sampling: Exact Monte Carlo
computation of the mutual information between stochastic trajectories. Physical
Review X. 2023;13(4). doi:10.1103/PhysRevX.13.041017'
apa: 'Reinhardt, M., Tkačik, G., & Ten Wolde, P. R. (2023). Path weight sampling:
Exact Monte Carlo computation of the mutual information between stochastic trajectories.
Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.13.041017'
chicago: 'Reinhardt, Manuel, Gašper Tkačik, and Pieter Rein Ten Wolde. “Path Weight
Sampling: Exact Monte Carlo Computation of the Mutual Information between Stochastic
Trajectories.” Physical Review X. American Physical Society, 2023. https://doi.org/10.1103/PhysRevX.13.041017.'
ieee: 'M. Reinhardt, G. Tkačik, and P. R. Ten Wolde, “Path weight sampling: Exact
Monte Carlo computation of the mutual information between stochastic trajectories,”
Physical Review X, vol. 13, no. 4. American Physical Society, 2023.'
ista: 'Reinhardt M, Tkačik G, Ten Wolde PR. 2023. Path weight sampling: Exact Monte
Carlo computation of the mutual information between stochastic trajectories. Physical
Review X. 13(4), 041017.'
mla: 'Reinhardt, Manuel, et al. “Path Weight Sampling: Exact Monte Carlo Computation
of the Mutual Information between Stochastic Trajectories.” Physical Review
X, vol. 13, no. 4, 041017, American Physical Society, 2023, doi:10.1103/PhysRevX.13.041017.'
short: M. Reinhardt, G. Tkačik, P.R. Ten Wolde, Physical Review X 13 (2023).
date_created: 2023-11-12T23:00:55Z
date_published: 2023-10-26T00:00:00Z
date_updated: 2025-09-09T13:18:24Z
day: '26'
ddc:
- '530'
department:
- _id: GaTk
doi: 10.1103/PhysRevX.13.041017
external_id:
arxiv:
- '2203.03461'
isi:
- '001122894200001'
file:
- access_level: open_access
checksum: 32574aeebcca7347a4152c611b66b3d5
content_type: application/pdf
creator: dernst
date_created: 2023-11-13T09:00:19Z
date_updated: 2023-11-13T09:00:19Z
file_id: '14522'
file_name: 2023_PhysReviewX_Reinhardt.pdf
file_size: 1595223
relation: main_file
success: 1
file_date_updated: 2023-11-13T09:00:19Z
has_accepted_license: '1'
intvolume: ' 13'
isi: 1
issue: '4'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Path weight sampling: Exact Monte Carlo computation of the mutual information
between stochastic trajectories'
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: 13
year: '2023'
...
---
_id: '13994'
abstract:
- lang: eng
text: "Ultrafast lasers are an increasingly important tool to control and stabilize
emergent phases in quantum materials. Among a variety of possible excitation protocols,
a particularly intriguing route is the direct light engineering of microscopic
electronic parameters, such as the electron hopping and the local Coulomb repulsion
(Hubbard \r\nU). In this work, we use time-resolved x-ray absorption spectroscopy
to demonstrate the light-induced renormalization of the Hubbard U in a cuprate
superconductor, La1.905Ba0.095CuO4. We show that intense femtosecond laser pulses
induce a substantial redshift of the upper Hubbard band while leaving the Zhang-Rice
singlet energy unaffected. By comparing the experimental data to time-dependent
spectra of single- and three-band Hubbard models, we assign this effect to an
approximately 140-meV reduction of the on-site Coulomb repulsion on the copper
sites. Our demonstration of a dynamical Hubbard U renormalization in a copper
oxide paves the way to a novel strategy for the manipulation of superconductivity
and magnetism as well as to the realization of other long-range-ordered phases
in light-driven quantum materials."
article_number: '011013'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Hoyoung
full_name: Jang, Hoyoung
last_name: Jang
- first_name: Ali A.
full_name: Husain, Ali A.
last_name: Husain
- first_name: Sangjun
full_name: Lee, Sangjun
last_name: Lee
- first_name: Sophia F. R.
full_name: TenHuisen, Sophia F. R.
last_name: TenHuisen
- first_name: Preston
full_name: Zhou, Preston
last_name: Zhou
- first_name: Sunwook
full_name: Park, Sunwook
last_name: Park
- first_name: Hoon
full_name: Kim, Hoon
last_name: Kim
- first_name: Jin-Kwang
full_name: Kim, Jin-Kwang
last_name: Kim
- first_name: Hyeong-Do
full_name: Kim, Hyeong-Do
last_name: Kim
- first_name: Minseok
full_name: Kim, Minseok
last_name: Kim
- first_name: Sang-Youn
full_name: Park, Sang-Youn
last_name: Park
- first_name: Peter
full_name: Abbamonte, Peter
last_name: Abbamonte
- first_name: B. J.
full_name: Kim, B. J.
last_name: Kim
- first_name: G. D.
full_name: Gu, G. D.
last_name: Gu
- first_name: Yao
full_name: Wang, Yao
last_name: Wang
- first_name: Matteo
full_name: Mitrano, Matteo
last_name: Mitrano
citation:
ama: Baykusheva DR, Jang H, Husain AA, et al. Ultrafast renormalization of the on-site
Coulomb repulsion in a cuprate superconductor. Physical Review X. 2022;12(1).
doi:10.1103/physrevx.12.011013
apa: Baykusheva, D. R., Jang, H., Husain, A. A., Lee, S., TenHuisen, S. F. R., Zhou,
P., … Mitrano, M. (2022). Ultrafast renormalization of the on-site Coulomb repulsion
in a cuprate superconductor. Physical Review X. American Physical Society.
https://doi.org/10.1103/physrevx.12.011013
chicago: Baykusheva, Denitsa Rangelova, Hoyoung Jang, Ali A. Husain, Sangjun Lee,
Sophia F. R. TenHuisen, Preston Zhou, Sunwook Park, et al. “Ultrafast Renormalization
of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” Physical Review
X. American Physical Society, 2022. https://doi.org/10.1103/physrevx.12.011013.
ieee: D. R. Baykusheva et al., “Ultrafast renormalization of the on-site
Coulomb repulsion in a cuprate superconductor,” Physical Review X, vol.
12, no. 1. American Physical Society, 2022.
ista: Baykusheva DR, Jang H, Husain AA, Lee S, TenHuisen SFR, Zhou P, Park S, Kim
H, Kim J-K, Kim H-D, Kim M, Park S-Y, Abbamonte P, Kim BJ, Gu GD, Wang Y, Mitrano
M. 2022. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate
superconductor. Physical Review X. 12(1), 011013.
mla: Baykusheva, Denitsa Rangelova, et al. “Ultrafast Renormalization of the On-Site
Coulomb Repulsion in a Cuprate Superconductor.” Physical Review X, vol.
12, no. 1, 011013, American Physical Society, 2022, doi:10.1103/physrevx.12.011013.
short: D.R. Baykusheva, H. Jang, A.A. Husain, S. Lee, S.F.R. TenHuisen, P. Zhou,
S. Park, H. Kim, J.-K. Kim, H.-D. Kim, M. Kim, S.-Y. Park, P. Abbamonte, B.J.
Kim, G.D. Gu, Y. Wang, M. Mitrano, Physical Review X 12 (2022).
date_created: 2023-08-09T13:08:26Z
date_published: 2022-01-20T00:00:00Z
date_updated: 2024-10-14T12:23:26Z
day: '20'
doi: 10.1103/physrevx.12.011013
extern: '1'
external_id:
arxiv:
- '2109.13229'
intvolume: ' 12'
issue: '1'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/PhysRevX.12.011013
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2022'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19823'
abstract:
- lang: eng
text: The delafossite metals PdCoO2, PtCoO2, and PdCrO2 are among the highest conductivity
materials known, with low-temperature mean free paths of tens of microns in the
best as-grown single crystals. A key question is whether these very low resistive
scattering rates result from strongly suppressed backscattering due to special
features of the electronic structure or are a consequence of highly unusual levels
of crystalline perfection. We report the results of experiments in which high-energy
electron irradiation was used to introduce point disorder to the Pd and Pt layers
in which the conduction occurs. We obtain the cross section for formation of Frenkel
pairs in absolute units, and cross-check our analysis with first-principles calculations
of the relevant atomic displacement energies. We observe an increase of resistivity
that is linear in defect density with a slope consistent with scattering in the
unitary limit. Our results enable us to deduce that the as-grown crystals contain
extremely low levels of in-plane defects of approximately 0.001%. This confirms
that crystalline perfection is the most important factor in realizing the long
mean free paths and highlights how unusual these delafossite metals are in comparison
with the vast majority of other multicomponent oxides and alloys. We discuss the
implications of our findings for future materials research.
article_number: '021018'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Veronika
full_name: Sunko, Veronika
id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
last_name: Sunko
orcid: 0000-0003-2724-3523
- first_name: P. H.
full_name: McGuinness, P. H.
last_name: McGuinness
- first_name: C. S.
full_name: Chang, C. S.
last_name: Chang
- first_name: E.
full_name: Zhakina, E.
last_name: Zhakina
- first_name: S.
full_name: Khim, S.
last_name: Khim
- first_name: C. E.
full_name: Dreyer, C. E.
last_name: Dreyer
- first_name: M.
full_name: Konczykowski, M.
last_name: Konczykowski
- first_name: H.
full_name: Borrmann, H.
last_name: Borrmann
- first_name: P. J. W.
full_name: Moll, P. J. W.
last_name: Moll
- first_name: M.
full_name: König, M.
last_name: König
- first_name: D. A.
full_name: Muller, D. A.
last_name: Muller
- first_name: A. P.
full_name: Mackenzie, A. P.
last_name: Mackenzie
citation:
ama: Sunko V, McGuinness PH, Chang CS, et al. Controlled introduction of defects
to delafossite metals by electron irradiation. Physical Review X. 2020;10(2).
doi:10.1103/physrevx.10.021018
apa: Sunko, V., McGuinness, P. H., Chang, C. S., Zhakina, E., Khim, S., Dreyer,
C. E., … Mackenzie, A. P. (2020). Controlled introduction of defects to delafossite
metals by electron irradiation. Physical Review X. American Physical Society.
https://doi.org/10.1103/physrevx.10.021018
chicago: Sunko, Veronika, P. H. McGuinness, C. S. Chang, E. Zhakina, S. Khim, C. E.
Dreyer, M. Konczykowski, et al. “Controlled Introduction of Defects to Delafossite
Metals by Electron Irradiation.” Physical Review X. American Physical Society,
2020. https://doi.org/10.1103/physrevx.10.021018.
ieee: V. Sunko et al., “Controlled introduction of defects to delafossite
metals by electron irradiation,” Physical Review X, vol. 10, no. 2. American
Physical Society, 2020.
ista: Sunko V, McGuinness PH, Chang CS, Zhakina E, Khim S, Dreyer CE, Konczykowski
M, Borrmann H, Moll PJW, König M, Muller DA, Mackenzie AP. 2020. Controlled introduction
of defects to delafossite metals by electron irradiation. Physical Review X. 10(2),
021018.
mla: Sunko, Veronika, et al. “Controlled Introduction of Defects to Delafossite
Metals by Electron Irradiation.” Physical Review X, vol. 10, no. 2, 021018,
American Physical Society, 2020, doi:10.1103/physrevx.10.021018.
short: V. Sunko, P.H. McGuinness, C.S. Chang, E. Zhakina, S. Khim, C.E. Dreyer,
M. Konczykowski, H. Borrmann, P.J.W. Moll, M. König, D.A. Muller, A.P. Mackenzie,
Physical Review X 10 (2020).
date_created: 2025-06-10T09:21:11Z
date_published: 2020-04-24T00:00:00Z
date_updated: 2025-06-10T13:08:51Z
day: '24'
doi: 10.1103/physrevx.10.021018
extern: '1'
external_id:
arxiv:
- '2001.01471'
intvolume: ' 10'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/PhysRevX.10.021018
month: '04'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Controlled introduction of defects to delafossite metals by electron irradiation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2020'
...
---
_id: '6786'
abstract:
- lang: eng
text: Dipolar coupling plays a fundamental role in the interaction between electrically
or magnetically polarized species such as magnetic atoms and dipolar molecules
in a gas or dipolar excitons in the solid state. Unlike Coulomb or contactlike
interactions found in many atomic, molecular, and condensed-matter systems, this
interaction is long-ranged and highly anisotropic, as it changes from repulsive
to attractive depending on the relative positions and orientation of the dipoles.
Because of this unique property, many exotic, symmetry-breaking collective states
have been recently predicted for cold dipolar gases, but only a few have been
experimentally detected and only in dilute atomic dipolar Bose-Einstein condensates.
Here, we report on the first observation of attractive dipolar coupling between
excitonic dipoles using a new design of stacked semiconductor bilayers. We show
that the presence of a dipolar exciton fluid in one bilayer modifies the spatial
distribution and increases the binding energy of excitonic dipoles in a vertically
remote layer. The binding energy changes are explained using a many-body polaron
model describing the deformation of the exciton cloud due to its interaction with
a remote dipolar exciton. The surprising nonmonotonic dependence on the cloud
density indicates the important role of dipolar correlations, which is unique
to dense, strongly interacting dipolar solid-state systems. Our concept provides
a route for the realization of dipolar lattices with strong anisotropic interactions
in semiconductor systems, which open the way for the observation of theoretically
predicted new and exotic collective phases, as well as for engineering and sensing
their collective excitations.
article_number: '021026'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Colin
full_name: Hubert, Colin
last_name: Hubert
- first_name: Yifat
full_name: Baruchi, Yifat
last_name: Baruchi
- first_name: Yotam
full_name: Mazuz-Harpaz, Yotam
last_name: Mazuz-Harpaz
- first_name: Kobi
full_name: Cohen, Kobi
last_name: Cohen
- first_name: Klaus
full_name: Biermann, Klaus
last_name: Biermann
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Ken
full_name: West, Ken
last_name: West
- first_name: Loren
full_name: Pfeiffer, Loren
last_name: Pfeiffer
- first_name: Ronen
full_name: Rapaport, Ronen
last_name: Rapaport
- first_name: Paulo
full_name: Santos, Paulo
last_name: Santos
citation:
ama: Hubert C, Baruchi Y, Mazuz-Harpaz Y, et al. Attractive dipolar coupling between
stacked exciton fluids. Physical Review X. 2019;9(2). doi:10.1103/PhysRevX.9.021026
apa: Hubert, C., Baruchi, Y., Mazuz-Harpaz, Y., Cohen, K., Biermann, K., Lemeshko,
M., … Santos, P. (2019). Attractive dipolar coupling between stacked exciton fluids.
Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.9.021026
chicago: Hubert, Colin, Yifat Baruchi, Yotam Mazuz-Harpaz, Kobi Cohen, Klaus Biermann,
Mikhail Lemeshko, Ken West, Loren Pfeiffer, Ronen Rapaport, and Paulo Santos.
“Attractive Dipolar Coupling between Stacked Exciton Fluids.” Physical Review
X. American Physical Society, 2019. https://doi.org/10.1103/PhysRevX.9.021026.
ieee: C. Hubert et al., “Attractive dipolar coupling between stacked exciton
fluids,” Physical Review X, vol. 9, no. 2. American Physical Society, 2019.
ista: Hubert C, Baruchi Y, Mazuz-Harpaz Y, Cohen K, Biermann K, Lemeshko M, West
K, Pfeiffer L, Rapaport R, Santos P. 2019. Attractive dipolar coupling between
stacked exciton fluids. Physical Review X. 9(2), 021026.
mla: Hubert, Colin, et al. “Attractive Dipolar Coupling between Stacked Exciton
Fluids.” Physical Review X, vol. 9, no. 2, 021026, American Physical Society,
2019, doi:10.1103/PhysRevX.9.021026.
short: C. Hubert, Y. Baruchi, Y. Mazuz-Harpaz, K. Cohen, K. Biermann, M. Lemeshko,
K. West, L. Pfeiffer, R. Rapaport, P. Santos, Physical Review X 9 (2019).
date_created: 2019-08-11T21:59:20Z
date_published: 2019-05-08T00:00:00Z
date_updated: 2025-04-15T07:59:29Z
day: '08'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/PhysRevX.9.021026
external_id:
arxiv:
- '1807.11238'
isi:
- '000467402900001'
file:
- access_level: open_access
checksum: 065ff82ee4a1d2c3773ce4b76ff4213c
content_type: application/pdf
creator: dernst
date_created: 2019-08-12T12:14:18Z
date_updated: 2020-07-14T12:47:40Z
file_id: '6802'
file_name: 2019_PhysReviewX_Hubert.pdf
file_size: 1193550
relation: main_file
file_date_updated: 2020-07-14T12:47:40Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '2'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 26031614-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29902
name: Quantum rotations in the presence of a many-body environment
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Attractive dipolar coupling between stacked exciton fluids
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: 9
year: '2019'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '21563'
abstract:
- lang: eng
text: "Quantum electrodynamics (QED) is one of the most precisely tested theories
in the history of science, giving accurate predictions to a wide range of experimental
observations. Recent experimental advances allow for the ability to probe physics
on extremely short attosecond timescales, enabling ultrafast imaging of quantum
dynamics. It is of great interest to extend our understanding of short-time quantum
dynamics to QED, where the focus is typically on long-time observables such as
\U0001D446\r\nmatrices, decay rates, and cross sections. That said, solving the
short-time dynamics of the QED Hamiltonian can lead to divergences, making it
unclear how to arrive at physical predictions. We present an approach to regularize
QED at short times and apply it to the problem of free-electron radiation into
a medium, known as Cherenkov radiation. Our regularization method, which can be
extended to other QED processes, is performed by subtracting the self-energy in
free space from the self-energy calculated in the medium. Surprisingly, we find
a number of previously unknown phenomena yielding corrections to the conventional
Cherenkov effect that could be observed in current experiments. Specifically,
the Cherenkov velocity threshold increases relative to the famous conventional
theory. This modification to the conventional theory, which can be non-negligible
in realistic scenarios, should result in the suppression of spontaneous emission
in readily available experiments. Finally, we reveal a bifurcation process creating
radiation into new Cherenkov angles, occurring in the strong-coupling regime,
which would be realizable by considering the radiation dynamics of highly charged
ions. Our results shed light on QED phenomena at short times and reveal surprising
new physics in the Cherenkov effect."
article_number: '041013'
article_processing_charge: Yes
article_type: original
author:
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Nicholas
full_name: Rivera, Nicholas
last_name: Rivera
- first_name: John D.
full_name: Joannopoulos, John D.
last_name: Joannopoulos
- first_name: Marin
full_name: Soljačić, Marin
last_name: Soljačić
- first_name: Ido
full_name: Kaminer, Ido
last_name: Kaminer
citation:
ama: Roques-Carmes C, Rivera N, Joannopoulos JD, Soljačić M, Kaminer I. Nonperturbative
quantum electrodynamics in the Cherenkov effect. Physical Review X. 2018;8(4).
doi:10.1103/physrevx.8.041013
apa: Roques-Carmes, C., Rivera, N., Joannopoulos, J. D., Soljačić, M., & Kaminer,
I. (2018). Nonperturbative quantum electrodynamics in the Cherenkov effect. Physical
Review X. American Physical Society. https://doi.org/10.1103/physrevx.8.041013
chicago: Roques-Carmes, Charles, Nicholas Rivera, John D. Joannopoulos, Marin Soljačić,
and Ido Kaminer. “Nonperturbative Quantum Electrodynamics in the Cherenkov Effect.”
Physical Review X. American Physical Society, 2018. https://doi.org/10.1103/physrevx.8.041013.
ieee: C. Roques-Carmes, N. Rivera, J. D. Joannopoulos, M. Soljačić, and I. Kaminer,
“Nonperturbative quantum electrodynamics in the Cherenkov effect,” Physical
Review X, vol. 8, no. 4. American Physical Society, 2018.
ista: Roques-Carmes C, Rivera N, Joannopoulos JD, Soljačić M, Kaminer I. 2018. Nonperturbative
quantum electrodynamics in the Cherenkov effect. Physical Review X. 8(4), 041013.
mla: Roques-Carmes, Charles, et al. “Nonperturbative Quantum Electrodynamics in
the Cherenkov Effect.” Physical Review X, vol. 8, no. 4, 041013, American
Physical Society, 2018, doi:10.1103/physrevx.8.041013.
short: C. Roques-Carmes, N. Rivera, J.D. Joannopoulos, M. Soljačić, I. Kaminer,
Physical Review X 8 (2018).
date_created: 2026-03-30T12:22:47Z
date_published: 2018-10-17T00:00:00Z
date_updated: 2026-04-13T13:28:00Z
day: '17'
ddc:
- '530'
doi: 10.1103/physrevx.8.041013
extern: '1'
has_accepted_license: '1'
intvolume: ' 8'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/PhysRevX.8.041013
month: '10'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nonperturbative quantum electrodynamics in the Cherenkov effect
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: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 8
year: '2018'
...
---
_id: '14003'
abstract:
- lang: eng
text: "Molecular chirality plays an essential role in most biochemical processes.
The observation and quantification of chirality-sensitive signals, however, remains
extremely challenging, especially on ultrafast timescales and in dilute media.
Here, we describe the experimental realization of an all-optical and ultrafast
scheme for detecting chiral dynamics in molecules. This technique is based on
high-harmonic generation by a combination of two-color counterrotating femtosecond
laser pulses with polarization states tunable from linear to circular. We demonstrate
two different implementations of chiral-sensitive high-harmonic spectroscopy on
an ensemble of randomly oriented methyloxirane molecules in the gas phase. Using
two elliptically polarized fields, we observe that the ellipticities maximizing
the harmonic signal reach up to \r\n4.4\r\n±\r\n0.2\r\n%\r\n (at 17.6 eV). Using
two circularly polarized fields, we observe circular dichroisms ranging up to
\r\n13\r\n±\r\n6\r\n%\r\n (28.3–33.1 eV). Our theoretical analysis confirms that
the observed chiral response originates from subfemtosecond electron dynamics
driven by the magnetic component of the driving laser field. This assignment is
supported by the experimental observation of a strong intensity dependence of
the chiral effects and its agreement with theory. We moreover report and explain
a pronounced variation of the signal strength and dichroism with the driving-field
ellipticities and harmonic orders. Finally, we demonstrate the sensitivity of
the experimental observables to the shape of the electron hole. This technique
for chiral discrimination will yield femtosecond temporal resolution when integrated
in a pump-probe scheme and subfemtosecond resolution on chiral charge migration
in a self-probing scheme."
article_number: '031060'
article_processing_charge: No
article_type: original
author:
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Hans Jakob
full_name: Wörner, Hans Jakob
last_name: Wörner
citation:
ama: Baykusheva DR, Wörner HJ. Chiral discrimination through bielliptical high-harmonic
spectroscopy. Physical Review X. 2018;8(3). doi:10.1103/physrevx.8.031060
apa: Baykusheva, D. R., & Wörner, H. J. (2018). Chiral discrimination through
bielliptical high-harmonic spectroscopy. Physical Review X. American Physical
Society. https://doi.org/10.1103/physrevx.8.031060
chicago: Baykusheva, Denitsa Rangelova, and Hans Jakob Wörner. “Chiral Discrimination
through Bielliptical High-Harmonic Spectroscopy.” Physical Review X. American
Physical Society, 2018. https://doi.org/10.1103/physrevx.8.031060.
ieee: D. R. Baykusheva and H. J. Wörner, “Chiral discrimination through bielliptical
high-harmonic spectroscopy,” Physical Review X, vol. 8, no. 3. American
Physical Society, 2018.
ista: Baykusheva DR, Wörner HJ. 2018. Chiral discrimination through bielliptical
high-harmonic spectroscopy. Physical Review X. 8(3), 031060.
mla: Baykusheva, Denitsa Rangelova, and Hans Jakob Wörner. “Chiral Discrimination
through Bielliptical High-Harmonic Spectroscopy.” Physical Review X, vol.
8, no. 3, 031060, American Physical Society, 2018, doi:10.1103/physrevx.8.031060.
short: D.R. Baykusheva, H.J. Wörner, Physical Review X 8 (2018).
date_created: 2023-08-10T06:34:48Z
date_published: 2018-07-01T00:00:00Z
date_updated: 2023-08-22T07:42:07Z
day: '01'
doi: 10.1103/physrevx.8.031060
extern: '1'
intvolume: ' 8'
issue: '3'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/PhysRevX.8.031060
month: '07'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Chiral discrimination through bielliptical high-harmonic spectroscopy
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2018'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '983'
abstract:
- lang: eng
text: The half-filled Landau level is expected to be approximately particle-hole
symmetric, which requires an extension of the Halperin-Lee-Read (HLR) theory of
the compressible state observed at this filling. Recent work indicates that, when
particle-hole symmetry is preserved, the composite fermions experience a quantized
π-Berry phase upon winding around the composite Fermi surface, analogous to Dirac
fermions at the surface of a 3D topological insulator. In contrast, the effective
low-energy theory of the composite fermion liquid originally proposed by HLR lacks
particle-hole symmetry and has vanishing Berry phase. In this paper, we explain
how thermoelectric transport measurements can be used to test the Dirac nature
of the composite fermions by quantitatively extracting this Berry phase. First,
we point out that longitudinal thermopower (Seebeck effect) is nonvanishing because
of the unusual nature of particle-hole symmetry in this context and is not sensitive
to the Berry phase. In contrast, we find that off-diagonal thermopower (Nernst
effect) is directly related to the topological structure of the composite Fermi
surface, vanishing for zero Berry phase and taking its maximal value for π Berry
phase. In contrast, in purely electrical transport signatures, the Berry phase
contributions appear as small corrections to a large background signal, making
the Nernst effect a promising diagnostic of the Dirac nature of composite fermions.
acknowledgement: We thank B. I. Halperin, N. Cooper, C. Wang, J. Alicea, and M. Zaletel
for insightful conversations. A. C. P. and M. S. were supported by the Gordon and
Betty Moore Foundation’s EPiQS Initiative through Grant No. GBMF4307. A. V. was
supported by a Simons Investigator grant.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andrew
full_name: Potter, Andrew
last_name: Potter
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Ashvin
full_name: Vishwanath, Ashvin
last_name: Vishwanath
citation:
ama: Potter A, Serbyn M, Vishwanath A. Thermoelectric transport signatures of Dirac
composite fermions in the half-filled Landau level. Physical Review X.
2016;6(3). doi:10.1103/PhysRevX.6.031026
apa: Potter, A., Serbyn, M., & Vishwanath, A. (2016). Thermoelectric transport
signatures of Dirac composite fermions in the half-filled Landau level. Physical
Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.6.031026
chicago: Potter, Andrew, Maksym Serbyn, and Ashvin Vishwanath. “Thermoelectric Transport
Signatures of Dirac Composite Fermions in the Half-Filled Landau Level.” Physical
Review X. American Physical Society, 2016. https://doi.org/10.1103/PhysRevX.6.031026.
ieee: A. Potter, M. Serbyn, and A. Vishwanath, “Thermoelectric transport signatures
of Dirac composite fermions in the half-filled Landau level,” Physical Review
X, vol. 6, no. 3. American Physical Society, 2016.
ista: Potter A, Serbyn M, Vishwanath A. 2016. Thermoelectric transport signatures
of Dirac composite fermions in the half-filled Landau level. Physical Review X.
6(3).
mla: Potter, Andrew, et al. “Thermoelectric Transport Signatures of Dirac Composite
Fermions in the Half-Filled Landau Level.” Physical Review X, vol. 6, no.
3, American Physical Society, 2016, doi:10.1103/PhysRevX.6.031026.
short: A. Potter, M. Serbyn, A. Vishwanath, Physical Review X 6 (2016).
date_created: 2018-12-11T11:49:32Z
date_published: 2016-01-01T00:00:00Z
date_updated: 2026-05-20T13:03:47Z
day: '01'
doi: 10.1103/PhysRevX.6.031026
extern: '1'
external_id:
arxiv:
- '1512.06852'
intvolume: ' 6'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/PhysRevX.6.031026
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
eissn:
- 2160-3308
publication_status: published
publisher: American Physical Society
publist_id: '6417'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermoelectric transport signatures of Dirac composite fermions in the half-filled
Landau level
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 6
year: '2016'
...