--- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21340' abstract: - lang: eng text: Equilibrium quantum systems are often described by a gas of weakly interacting normal modes. Bringing such systems far from equilibrium, however, can drastically enhance mode-to-mode interactions. Understanding the resulting liquid is a fundamental question for quantum statistical mechanics and a practical question for engineering driven quantum devices. To tackle this question, we probe the non-equilibrium kinetics of one-dimensional plasmons in a long chain of Josephson junctions. We introduce multimode spectroscopy to controllably study the departure from equilibrium, witnessing the evolution from pairwise coupling between plasma modes at weak driving to dramatic, high-order, cascaded couplings at strong driving. Scaling to many-mode drives, we stimulate interactions between hundreds of modes, resulting in near-continuum internal dynamics. Imaging the resulting non-equilibrium plasmon populations, we then resolve the nonlocal redistribution of energy in the response to a weak perturbation—an explicit verification of the emergence of a strongly interacting, non-equilibrium liquid of plasmons. acknowledged_ssus: - _id: NanoFab - _id: M-Shop acknowledgement: We thank V. Vitelli, M. Fruchart, and A. Burshstein for helpful input. We acknowledge technical support from the Nanofabrication Facility and the MIBA machine shop at IST Austria. This research was supported in part by grant NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP), by the Austrian Science Fund (FWF) SFB F86, and by the NOMIS foundation. article_number: eady7222 article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Anton full_name: Bubis, Anton id: 1f6212b5-f795-11ec-9c0c-de4780302890 last_name: Bubis - first_name: Lucia full_name: Vigliotti, Lucia id: 539e1e1a-e604-11ee-a1df-f02b018e5c8c last_name: Vigliotti - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 citation: ama: Bubis A, Vigliotti L, Serbyn M, Higginbotham AP. Non-equilibrium plasmon liquid in a Josephson junction chain. Science Advances. 2026;12(7). doi:10.1126/sciadv.ady7222 apa: Bubis, A., Vigliotti, L., Serbyn, M., & Higginbotham, A. P. (2026). Non-equilibrium plasmon liquid in a Josephson junction chain. Science Advances. American Association for the Advancement of Science. https://doi.org/10.1126/sciadv.ady7222 chicago: Bubis, Anton, Lucia Vigliotti, Maksym Serbyn, and Andrew P Higginbotham. “Non-Equilibrium Plasmon Liquid in a Josephson Junction Chain.” Science Advances. American Association for the Advancement of Science, 2026. https://doi.org/10.1126/sciadv.ady7222. ieee: A. Bubis, L. Vigliotti, M. Serbyn, and A. P. Higginbotham, “Non-equilibrium plasmon liquid in a Josephson junction chain,” Science Advances, vol. 12, no. 7. American Association for the Advancement of Science, 2026. ista: Bubis A, Vigliotti L, Serbyn M, Higginbotham AP. 2026. Non-equilibrium plasmon liquid in a Josephson junction chain. Science Advances. 12(7), eady7222. mla: Bubis, Anton, et al. “Non-Equilibrium Plasmon Liquid in a Josephson Junction Chain.” Science Advances, vol. 12, no. 7, eady7222, American Association for the Advancement of Science, 2026, doi:10.1126/sciadv.ady7222. short: A. Bubis, L. Vigliotti, M. Serbyn, A.P. Higginbotham, Science Advances 12 (2026). corr_author: '1' date_created: 2026-02-22T20:47:38Z date_published: 2026-02-13T00:00:00Z date_updated: 2026-02-24T07:25:34Z day: '13' ddc: - '530' department: - _id: MaSe - _id: AnHi - _id: GeKa doi: 10.1126/sciadv.ady7222 external_id: arxiv: - '2504.09721' file: - access_level: open_access checksum: 8402f322f8f0e858b1d9aac57e306e31 content_type: application/pdf creator: dernst date_created: 2026-02-24T07:23:32Z date_updated: 2026-02-24T07:23:32Z file_id: '21353' file_name: 2026_ScienceAdv_Bubis.pdf file_size: 2775975 relation: main_file success: 1 file_date_updated: 2026-02-24T07:23:32Z has_accepted_license: '1' intvolume: ' 12' issue: '7' language: - iso: eng month: '02' oa: 1 oa_version: Published Version publication: Science Advances publication_identifier: eissn: - 2375-2548 publication_status: published publisher: American Association for the Advancement of Science quality_controlled: '1' status: public title: Non-equilibrium plasmon liquid in a Josephson junction chain 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: '2026' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '21480' abstract: - lang: eng text: We present and test a protocol to learn the matrix-product operator (MPO) representation of an experimentally prepared quantum state. The protocol takes as input classical shadows corresponding to local randomized measurements, and outputs the tensors of an MPO maximizing a suitably defined fidelity with the experimental state. The tensor optimization is carried out sequentially, similarly to the well-known density matrix renormalization group algorithm. Our approach is provably efficient under certain technical conditions expected to be met in short-range correlated states and in typical noisy experimental settings. Under the same conditions, we also provide an efficient scheme to estimate fidelities between the learned and the experimental states. We experimentally demonstrate our protocol by learning entangled quantum states of up to N = 96 qubits in a superconducting quantum processor. Our method upgrades classical shadows to large-scale quantum computation and simulation experiments. acknowledgement: "We acknowledge insightful discussions with Antoine Browaeys, Mari Carmen Bañuls, Soonwon Choi, Thierry Lahaye, Daniel Stilck-França, Georgios Styliaris, and Xavier Waintal. The experimental data have been collected using the Qiskit library [103], and have been postprocessed using the RandomMeas [104] and ITensor [105] libraries. The work of M. V. and B. V. was funded by the French National Research Agency via the JCJC project QRand (No. ANR-20-CE47-0005), and via the research programs Plan France 2030 EPIQ (No. ANR-22-\r\nPETQ-0007), QUBITAF (No. ANR-22-PETQ-0004), and HQI (No. ANR-22-PNCQ-0002). We acknowledge the use of IBM Quantum Credits for this work. M. L. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2111–390814868. The work of C. L. was funded by the French National Research Agency via the PRC project ESQuisses (No. ANR-20-CE47-0014-01). J. I. C.\r\nacknowledges funding from the Federal Ministry of Education and Research Germany (BMBF) via the project FermiQP (No. 13N15889). Work at MPQ is part of the Munich Quantum Valley, which is supported by the Bavarian state government with funds from the Hightech Agenda\r\nBayern Plus. P. Z. acknowledges support by the European Union’s Horizon Europe research and innovation program under Grant Agreement No. 101113690 (PASQANS2). The work of L. P. was funded by the European Union (ERC, QUANTHEM, No. 101114881). We acknowledge support\r\nby the Erwin Schrödinger International Institute for Mathematics and Physics (ESI)." article_number: '090801' article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Matteo full_name: Votto, Matteo last_name: Votto - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Cécilia full_name: Lancien, Cécilia last_name: Lancien - first_name: J. Ignacio full_name: Cirac, J. Ignacio last_name: Cirac - first_name: Peter full_name: Zoller, Peter last_name: Zoller - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - first_name: Lorenzo full_name: Piroli, Lorenzo last_name: Piroli - first_name: Benoît full_name: Vermersch, Benoît last_name: Vermersch citation: ama: Votto M, Ljubotina M, Lancien C, et al. Learning mixed quantum states in large-scale experiments. Physical Review Letters. 2026;136(9). doi:10.1103/rbg2-f61m apa: Votto, M., Ljubotina, M., Lancien, C., Cirac, J. I., Zoller, P., Serbyn, M., … Vermersch, B. (2026). Learning mixed quantum states in large-scale experiments. Physical Review Letters. American Physical Society. https://doi.org/10.1103/rbg2-f61m chicago: Votto, Matteo, Marko Ljubotina, Cécilia Lancien, J. Ignacio Cirac, Peter Zoller, Maksym Serbyn, Lorenzo Piroli, and Benoît Vermersch. “Learning Mixed Quantum States in Large-Scale Experiments.” Physical Review Letters. American Physical Society, 2026. https://doi.org/10.1103/rbg2-f61m. ieee: M. Votto et al., “Learning mixed quantum states in large-scale experiments,” Physical Review Letters, vol. 136, no. 9. American Physical Society, 2026. ista: Votto M, Ljubotina M, Lancien C, Cirac JI, Zoller P, Serbyn M, Piroli L, Vermersch B. 2026. Learning mixed quantum states in large-scale experiments. Physical Review Letters. 136(9), 090801. mla: Votto, Matteo, et al. “Learning Mixed Quantum States in Large-Scale Experiments.” Physical Review Letters, vol. 136, no. 9, 090801, American Physical Society, 2026, doi:10.1103/rbg2-f61m. short: M. Votto, M. Ljubotina, C. Lancien, J.I. Cirac, P. Zoller, M. Serbyn, L. Piroli, B. Vermersch, Physical Review Letters 136 (2026). date_created: 2026-03-23T14:56:32Z date_published: 2026-03-04T00:00:00Z date_updated: 2026-03-23T15:39:34Z day: '04' ddc: - '530' department: - _id: MaSe doi: 10.1103/rbg2-f61m external_id: arxiv: - '2507.12550' file: - access_level: open_access checksum: 12b16ce2d49c62b2909da95121bfaadb content_type: application/pdf creator: dernst date_created: 2026-03-23T15:35:27Z date_updated: 2026-03-23T15:35:27Z file_id: '21491' file_name: 2026_PhysicalReviewLetters_Votto.pdf file_size: 500041 relation: main_file success: 1 file_date_updated: 2026-03-23T15:35:27Z has_accepted_license: '1' intvolume: ' 136' issue: '9' language: - iso: eng month: '03' oa: 1 oa_version: Published Version publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' status: public title: Learning mixed quantum states in large-scale experiments 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' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21501' abstract: - lang: eng text: "Kinetically constrained models were originally introduced to capture slow relaxation in glassy systems, where dynamics are hindered by local constraints instead of energy barriers. Their quantum counterparts have recently drawn attention for exhibiting highly degenerate eigenstates at zero energy—known as zero modes—stemming from chiral symmetry. Yet, the structure and implications of these zero modes remain poorly understood. In this work, we focus on the properties of the zero mode subspace in quantum kinetically constrained models with a U(1) particle-conservation symmetry. We use the U(1) East, which lacks inversion symmetry, and the inversion-symmetric U(1) East-West models to illustrate our two main results. First, we observe that the simultaneous presence of constraints and chiral symmetry generally leads to a parametric increase in the number of zero modes due to the fragmentation of the many-body\r\nHilbert space into disconnected sectors. Second, we generalize the concept of compact localized states from single-particle physics and introduce the notion of collective bound states, a special kind of nonergodic eigenstates that are robust to enlarging the system size. We formulate sufficient criteria for their existence, arguing that the degenerate zero mode subspace plays a central role, and demonstrate bound states in both example models and in a two-dimensional model, the U(1) North-East, and in the pairflip model, a system without particle conservation. Our results motivate a systematic study of bound states and their relation to ergodicity breaking, transport, and other properties of quantum kinetically constrained\r\nmodels. " acknowledgement: The authors acknowledge useful discussions with Berislav Buca. This work was supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). M.L. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2111—390814868. This research was supported in part by grant NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP). article_number: '010352' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Eulalia full_name: Nicolau Jimenez, Eulalia id: 04b4791c-8fd7-11ee-a7df-be2fdc569c48 last_name: Nicolau Jimenez - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 citation: ama: Nicolau Jimenez E, Ljubotina M, Serbyn M. Fragmentation, zero modes, and collective bound states in constrained models. PRX Quantum. 2026;7. doi:10.1103/sl79-1xgb apa: Nicolau Jimenez, E., Ljubotina, M., & Serbyn, M. (2026). Fragmentation, zero modes, and collective bound states in constrained models. PRX Quantum. American Physical Society. https://doi.org/10.1103/sl79-1xgb chicago: Nicolau Jimenez, Eulalia, Marko Ljubotina, and Maksym Serbyn. “Fragmentation, Zero Modes, and Collective Bound States in Constrained Models.” PRX Quantum. American Physical Society, 2026. https://doi.org/10.1103/sl79-1xgb. ieee: E. Nicolau Jimenez, M. Ljubotina, and M. Serbyn, “Fragmentation, zero modes, and collective bound states in constrained models,” PRX Quantum, vol. 7. American Physical Society, 2026. ista: Nicolau Jimenez E, Ljubotina M, Serbyn M. 2026. Fragmentation, zero modes, and collective bound states in constrained models. PRX Quantum. 7, 010352. mla: Nicolau Jimenez, Eulalia, et al. “Fragmentation, Zero Modes, and Collective Bound States in Constrained Models.” PRX Quantum, vol. 7, 010352, American Physical Society, 2026, doi:10.1103/sl79-1xgb. short: E. Nicolau Jimenez, M. Ljubotina, M. Serbyn, PRX Quantum 7 (2026). corr_author: '1' date_created: 2026-03-28T14:57:56Z date_published: 2026-03-13T00:00:00Z date_updated: 2026-03-30T06:09:28Z day: '13' ddc: - '530' department: - _id: MaSe doi: 10.1103/sl79-1xgb ec_funded: 1 external_id: arxiv: - '2504.17627' file: - access_level: open_access checksum: d155ffa9e1a8275702149165f4bf963c content_type: application/pdf creator: dernst date_created: 2026-03-30T06:08:07Z date_updated: 2026-03-30T06:08:07Z file_id: '21505' file_name: 2026_PRXQuantum_Nicolau.pdf file_size: 1848724 relation: main_file success: 1 file_date_updated: 2026-03-30T06:08:07Z has_accepted_license: '1' intvolume: ' 7' 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: PRX Quantum publication_identifier: eissn: - 2691-3399 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Fragmentation, zero modes, and collective bound states in 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: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 7 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: repository OA_type: green _id: '19791' abstract: - lang: eng text: Confinement is a prominent phenomenon in condensed matter and high-energy physics that has recently become the focus of quantum-simulation experiments of lattice gauge theories (LGTs). As such, a theoretical understanding of the effect of confinement on LGT dynamics is not only of fundamental importance, but can lend itself to upcoming experiments. Here, we show how confinement in a Z2 LGT can be locally avoided by proximity to a resonance between the fermion mass and the electric field strength. Furthermore, we show that this local deconfinement can become global for certain initial conditions, where information transport occurs over the entire chain. In addition, we show how this can lead to strong quantum many-body scarring starting in different initial states. Our findings provide deeper insights into the nature of confinement in Z2 LGTs and can be tested on current and near-term quantum devices. acknowledgement: The authors are grateful to Fiona Burnell, Gaurav Gyawali, Zlatko Papi´c, Elliot Rosenberg, Pedram Roushan, and Michael Schecter for insightful discussions. J.-Y.D. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie Grant Agreement No. 101034413. T.I. Acknowledges support from the National Science Foundation under Grant No. DMR-2143635. J.C.H. acknowledges support from the Emmy Noether Programme of the German Research Foundation (DFG) under grant no. HA 8206/1-1. article_processing_charge: No author: - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 citation: ama: Desaules J-YM. Research Data for “Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.” 2025. doi:10.15479/AT:ISTA:19791 apa: Desaules, J.-Y. M. (2025). Research Data for “Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.” Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:19791 chicago: Desaules, Jean-Yves Marc. “Research Data for ‘Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.’” Institute of Science and Technology Austria, 2025. https://doi.org/10.15479/AT:ISTA:19791. ieee: J.-Y. M. Desaules, “Research Data for ‘Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.’” Institute of Science and Technology Austria, 2025. ista: Desaules J-YM. 2025. Research Data for ‘Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory’, Institute of Science and Technology Austria, 10.15479/AT:ISTA:19791. mla: Desaules, Jean-Yves Marc. Research Data for “Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.” Institute of Science and Technology Austria, 2025, doi:10.15479/AT:ISTA:19791. short: J.-Y.M. Desaules, (2025). contributor: - contributor_type: researcher first_name: Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 - contributor_type: researcher first_name: Thomas last_name: Iadecola - contributor_type: researcher first_name: Jad last_name: Halimeh corr_author: '1' date_created: 2025-06-04T14:30:22Z date_published: 2025-06-04T00:00:00Z date_updated: 2025-09-30T14:34:42Z day: '04' ddc: - '530' department: - _id: MaSe doi: 10.15479/AT:ISTA:19791 ec_funded: 1 file: - access_level: open_access checksum: a613d73ee05f72a48ae9c97693bdd690 content_type: application/zip creator: jdesaule date_created: 2025-06-04T14:26:29Z date_updated: 2025-06-04T14:26:29Z file_id: '19792' file_name: Data+Code.zip file_size: 31946898 relation: main_file success: 1 - access_level: open_access checksum: 7df1549ce5e2f293d142ecf5e5b89489 content_type: text/plain creator: jdesaule date_created: 2025-06-04T14:26:29Z date_updated: 2025-06-04T14:26:29Z file_id: '19793' file_name: readme.txt file_size: 13071 relation: other file_date_updated: 2025-06-04T14:26:29Z has_accepted_license: '1' keyword: - lattice gauge theories - quantum many-body scars - deconfinement license: https://creativecommons.org/licenses/by-nc/4.0/ month: '06' oa: 1 oa_version: Preprint project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' publisher: Institute of Science and Technology Austria related_material: link: - relation: preprint url: https://arxiv.org/abs/2404.11645 record: - id: '20327' relation: used_in_publication status: public status: public title: Research Data for "Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory" tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: research_data user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2025' ... --- OA_place: publisher OA_type: hybrid _id: '19833' abstract: - lang: eng text: Eigenstates of quantum many-body systems are often used to define phases of matter in and out of equilibrium; however, experimentally accessing highly excited eigenstates is a challenging task, calling for alternative strategies to dynamically probe nonequilibrium phases. In this work, we characterize the dynamical properties of a disordered spin chain, focusing on the spin-glass regime. Using tensor-network simulations, we observe oscillatory behavior of local expectation values and bipartite entanglement entropy. We explain these oscillations deep in the many-body localized spin-glass regime via a simple theoretical model. From perturbation theory, we predict the timescales up to which our analytical description is valid and confirm it with numerical simulations. Finally, we study the correlation length dynamics, which, after a long-time plateau, resume growing in line with renormalization group (RG) expectations. Our work suggests that RG predictions can be quantitatively tested against numerical simulations and experiments, potentially enabling microscopic descriptions of dynamical phases in large systems. acknowledgement: We thank D. A. Abanin for insightful discussions in the early stages of this work. P.B. acknowledges support by the Austrian Science Fund (FWF) [Grant Agreement No. 10.55776/ESP9057324]. This research was funded in whole or in part by the Austrian Science Fund (FWF) [10.55776/COE1]. The authors acknowledge support by the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (Grant Agreement No. 850899). M.L. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy–EXC-2111–390814868. The authors acknowledge PRACE for awarding access to Joliot-Curie at GENCI@CEA, France, where the TEBD simulations were performed. The TEBD simulations were performed using the ITensor library [52]. article_number: L220202 article_processing_charge: Yes (in subscription journal) article_type: letter_note arxiv: 1 author: - first_name: Pietro full_name: Brighi, Pietro id: 4115AF5C-F248-11E8-B48F-1D18A9856A87 last_name: Brighi orcid: 0000-0002-7969-2729 - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 citation: ama: Brighi P, Ljubotina M, Serbyn M. Probing the many-body localized spin-glass phase through quench dynamics. Physical Review B. 2025;111(22). doi:10.1103/9fms-ygfz apa: Brighi, P., Ljubotina, M., & Serbyn, M. (2025). Probing the many-body localized spin-glass phase through quench dynamics. Physical Review B. American Physical Society. https://doi.org/10.1103/9fms-ygfz chicago: Brighi, Pietro, Marko Ljubotina, and Maksym Serbyn. “Probing the Many-Body Localized Spin-Glass Phase through Quench Dynamics.” Physical Review B. American Physical Society, 2025. https://doi.org/10.1103/9fms-ygfz. ieee: P. Brighi, M. Ljubotina, and M. Serbyn, “Probing the many-body localized spin-glass phase through quench dynamics,” Physical Review B, vol. 111, no. 22. American Physical Society, 2025. ista: Brighi P, Ljubotina M, Serbyn M. 2025. Probing the many-body localized spin-glass phase through quench dynamics. Physical Review B. 111(22), L220202. mla: Brighi, Pietro, et al. “Probing the Many-Body Localized Spin-Glass Phase through Quench Dynamics.” Physical Review B, vol. 111, no. 22, L220202, American Physical Society, 2025, doi:10.1103/9fms-ygfz. short: P. Brighi, M. Ljubotina, M. Serbyn, Physical Review B 111 (2025). date_created: 2025-06-13T06:09:38Z date_published: 2025-06-12T00:00:00Z date_updated: 2025-09-30T12:48:10Z day: '12' ddc: - '530' department: - _id: MaSe doi: 10.1103/9fms-ygfz ec_funded: 1 external_id: arxiv: - '2502.08192' isi: - '001511503800006' file: - access_level: open_access checksum: 7941f92124793a383ca132eee2c289c5 content_type: application/pdf creator: dernst date_created: 2025-06-23T06:28:17Z date_updated: 2025-06-23T06:28:17Z file_id: '19861' file_name: 2025_PhysReviewB_Brighi.pdf file_size: 1082749 relation: main_file success: 1 file_date_updated: 2025-06-23T06:28:17Z has_accepted_license: '1' intvolume: ' 111' isi: 1 issue: '22' language: - iso: eng month: '06' 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 B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Probing the many-body localized spin-glass phase through quench dynamics 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: 111 year: '2025' ... --- OA_place: publisher OA_type: hybrid _id: '19852' abstract: - lang: eng text: "Technology involving hybrid superconductor–semiconductor materials is a promising avenue for engineering quantum devices for information storage, manipulation, and transmission. Proximity-induced superconducting correlations are an essential part of such devices. While the proximity effect in the conduction band of common semiconductors is well understood, its manifestation in confined hole gases, realized for instance in germanium, is an active area of research. Lower-dimensional hole-based systems, particularly in germanium, are emerging as an attractive platform for a variety of solid-state quantum devices, due to their combination of efficient spin and charge control and long coherence times. The recent experimental realization of the proximity effect in germanium thus calls for a theoretical description that is tailored to hole gases. In this work, we propose a simple model to describe proximity-induced superconductivity in two-dimensional hole gases, incorporating both the heavy-hole (HH) and light-hole (LH) bands. We start from the Luttinger–Kohn model, introduce three parameters that characterize hopping across the superconductor–semiconductor interface, and derive explicit intraband and interband effective pairing terms for the HH and LH bands. Unlike previous approaches, our theory provides a quantitative relationship between induced pairings and interface properties. Restricting our general model to an experimentally relevant case where only the HH band crosses the chemical potential, we predict the coexistence of \U0001D460-wave and \U0001D451-wave singlet pairings, along with triplet-type pairings, and modified Zeeman and Rashba spin–orbit couplings. Our results thus present a starting point for theoretical modeling of quantum devices based on proximitized hole gases, fueling further progress in quantum technology." acknowledgement: We acknowledge useful discussions with Georgios Katsaros, Andrew Higginbotham, and Oliver Schwarze. This research was funded in part by the Austrian Science Fund (FWF) F 86, the European Research Council (Grant Agreement No. 856526), and by the DFG Collaborative Research Center (CRC) 183 Project No. 277101999. article_number: '214518' article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Serafim full_name: Babkin, Serafim id: e63d75c3-72ef-11ef-b75a-e303e149911f last_name: Babkin - first_name: Benjamin full_name: Joecker, Benjamin last_name: Joecker - first_name: Karsten full_name: Flensberg, Karsten last_name: Flensberg - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - first_name: Jeroen full_name: Danon, Jeroen last_name: Danon citation: ama: Babkin S, Joecker B, Flensberg K, Serbyn M, Danon J. Superconducting proximity effect in two-dimensional hole gases. Physical Review B. 2025;111(21). doi:10.1103/k4jh-pnxy apa: Babkin, S., Joecker, B., Flensberg, K., Serbyn, M., & Danon, J. (2025). Superconducting proximity effect in two-dimensional hole gases. Physical Review B. American Physical Society. https://doi.org/10.1103/k4jh-pnxy chicago: Babkin, Serafim, Benjamin Joecker, Karsten Flensberg, Maksym Serbyn, and Jeroen Danon. “Superconducting Proximity Effect in Two-Dimensional Hole Gases.” Physical Review B. American Physical Society, 2025. https://doi.org/10.1103/k4jh-pnxy. ieee: S. Babkin, B. Joecker, K. Flensberg, M. Serbyn, and J. Danon, “Superconducting proximity effect in two-dimensional hole gases,” Physical Review B, vol. 111, no. 21. American Physical Society, 2025. ista: Babkin S, Joecker B, Flensberg K, Serbyn M, Danon J. 2025. Superconducting proximity effect in two-dimensional hole gases. Physical Review B. 111(21), 214518. mla: Babkin, Serafim, et al. “Superconducting Proximity Effect in Two-Dimensional Hole Gases.” Physical Review B, vol. 111, no. 21, 214518, American Physical Society, 2025, doi:10.1103/k4jh-pnxy. short: S. Babkin, B. Joecker, K. Flensberg, M. Serbyn, J. Danon, Physical Review B 111 (2025). corr_author: '1' date_created: 2025-06-19T16:54:54Z date_published: 2025-06-18T00:00:00Z date_updated: 2025-09-30T12:53:47Z day: '18' ddc: - '530' department: - _id: MaSe - _id: GradSch doi: 10.1103/k4jh-pnxy external_id: arxiv: - '2412.04084' isi: - '001514328000004' file: - access_level: open_access checksum: fa8757f4780cfaeb51579c626284a8c1 content_type: application/pdf creator: dernst date_created: 2025-06-23T10:31:11Z date_updated: 2025-06-23T10:31:11Z file_id: '19869' file_name: 2025_PhysReviewB_Babkin.pdf file_size: 1719489 relation: main_file success: 1 file_date_updated: 2025-06-23T10:31:11Z has_accepted_license: '1' intvolume: ' 111' isi: 1 issue: '21' language: - iso: eng month: '06' oa: 1 oa_version: Published Version project: - _id: 34a7f947-11ca-11ed-8bc3-c5dc2bbaae25 grant_number: F8609 name: 'Center for Correlated Quantum Materials and Solid State Quantum Systems: Probing topology in circuits and quantum materials' publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Superconducting proximity effect in two-dimensional hole gases 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: 111 year: '2025' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '20327' abstract: - lang: eng text: Confinement is a prominent phenomenon in condensed-matter and high-energy physics that has recently become the focus of quantum-simulation experiments of lattice gauge theories (LGTs). As such, a theoretical understanding of the effect of confinement on LGT dynamics is not only of fundamental importance but also can lend itself to upcoming experiments. Here we show how confinement in a Z2 LGT can be avoided by proximity to a resonance between the fermion mass and the electric field strength. Furthermore, we show that this local deconfinement can become global for certain initial conditions, where information transport occurs over the entire chain. In addition, we show how this can lead to strong quantum many-body scarring starting in different initial states. Our findings provide deeper insights into the nature of confinement in Z2 LGTs and can be tested on current and near-term quantum devices. acknowledgement: The authors are grateful to Fiona Burnell, Gaurav Gyawali, Zlatko Papić, Elliot Rosenberg, Pedram Roushan, Michael Schecter, and Una Šlanka for insightful discussions. J.-Y.D. acknowledges funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant No. 101034413. T.I. acknowledges support from the National Science Foundation under Grant No. DMR-2143635. J.C.H. acknowledges funding by the Emmy Noether Programme of the German Research Foundation (DFG) under Grant No. HA 8206/1-1.s, the Max Planck Society, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy–EXC-2111–390814868, and the European Research Council (ERC) under the European Union's Horizon Europe research and innovation program (Grant Agreement No. 101165667) ERC Starting Grant QuSiGauge. This work is part of the Quantum Computing for High-Energy Physics (QC4HEP) working group. article_number: '014301' article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 - first_name: Thomas full_name: Iadecola, Thomas last_name: Iadecola - first_name: Jad C. full_name: Halimeh, Jad C. last_name: Halimeh citation: ama: Desaules J-YM, Iadecola T, Halimeh JC. Mass-assisted local deconfinement in a confined Z2 lattice gauge theory. Physical Review B. 2025;112(1). doi:10.1103/mfg2-t6gb apa: Desaules, J.-Y. M., Iadecola, T., & Halimeh, J. C. (2025). Mass-assisted local deconfinement in a confined Z2 lattice gauge theory. Physical Review B. American Physical Society. https://doi.org/10.1103/mfg2-t6gb chicago: Desaules, Jean-Yves Marc, Thomas Iadecola, and Jad C. Halimeh. “Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.” Physical Review B. American Physical Society, 2025. https://doi.org/10.1103/mfg2-t6gb. ieee: J.-Y. M. Desaules, T. Iadecola, and J. C. Halimeh, “Mass-assisted local deconfinement in a confined Z2 lattice gauge theory,” Physical Review B, vol. 112, no. 1. American Physical Society, 2025. ista: Desaules J-YM, Iadecola T, Halimeh JC. 2025. Mass-assisted local deconfinement in a confined Z2 lattice gauge theory. Physical Review B. 112(1), 014301. mla: Desaules, Jean-Yves Marc, et al. “Mass-Assisted Local Deconfinement in a Confined Z2 Lattice Gauge Theory.” Physical Review B, vol. 112, no. 1, 014301, American Physical Society, 2025, doi:10.1103/mfg2-t6gb. short: J.-Y.M. Desaules, T. Iadecola, J.C. Halimeh, Physical Review B 112 (2025). corr_author: '1' date_created: 2025-09-10T05:44:47Z date_published: 2025-07-01T00:00:00Z date_updated: 2025-09-30T14:34:43Z day: '01' ddc: - '530' department: - _id: MaSe doi: 10.1103/mfg2-t6gb ec_funded: 1 external_id: arxiv: - '2404.11645' isi: - '001530465500007' file: - access_level: open_access checksum: dd919bb9c4c233eba047af4262e02835 content_type: application/pdf creator: dernst date_created: 2025-09-10T06:47:23Z date_updated: 2025-09-10T06:47:23Z file_id: '20333' file_name: 2025_PhysReviewB_Desaules.pdf file_size: 3458424 relation: main_file success: 1 file_date_updated: 2025-09-10T06:47:23Z has_accepted_license: '1' intvolume: ' 112' isi: 1 issue: '1' language: - iso: eng month: '07' oa: 1 oa_version: Published Version project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: record: - id: '19791' relation: research_data status: public scopus_import: '1' status: public title: Mass-assisted local deconfinement in a confined Z2 lattice gauge theory 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: 112 year: '2025' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '20503' abstract: - lang: eng text: We introduce a class of interacting fermionic quantum models in d dimensions with nodal interactions that exhibit superdiffusive transport. We establish nonperturbatively that the nodal structure of the interactions gives rise to long-lived quasiparticle excitations that result in a diverging diffusion constant, even though the system is fully chaotic. Using a Boltzmann equation approach, we find that the charge mode acquires an anomalous dispersion relation at long wavelength ωðqÞ ∼ qz with dynamical exponent z ¼ min½ð2n þ dÞ=2n; 2, where n is the order of the nodal point in momentum space. We verify our predictions in one-dimensional systems using tensor-network techniques. acknowledgement: "Y.-P. W. thanks Chen Fang, Marko Žnidarič, Enej Ilievski, and Curt von Keyserlingk for useful\r\ndiscussion. Y.-P. W. is supported by Chinese Academy of Sciences under Grant No. XDB33020000, National Natural Science Foundation of China (NSFC) under Grants No. 12325404 and No. 12188101 and National Key R&D Program of China under Grants\r\nNo. 2022YFA1403800 and No. 2023YFA1406704. S. G. acknowledges support from NSF No. QuSEC-TAQS OSI 2326767. J. R. acknowledges support by the Leverhulme Trust Research Leadership Award No. RL-2019-015. R. V. acknowledges partial support from the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0023999." article_number: '166303' article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Yupeng full_name: Wang, Yupeng id: 6a394bd3-0984-11f0-8835-a92b812ec257 last_name: Wang - first_name: Jie full_name: Ren, Jie last_name: Ren - first_name: Sarang full_name: Gopalakrishnan, Sarang last_name: Gopalakrishnan - first_name: Romain full_name: Vasseur, Romain last_name: Vasseur citation: ama: Wang Y, Ren J, Gopalakrishnan S, Vasseur R. Superdiffusive transport in chaotic quantum systems with nodal interactions. Physical Review Letters. 2025;135(16). doi:10.1103/xx9z-4j6c apa: Wang, Y., Ren, J., Gopalakrishnan, S., & Vasseur, R. (2025). Superdiffusive transport in chaotic quantum systems with nodal interactions. Physical Review Letters. American Physical Society. https://doi.org/10.1103/xx9z-4j6c chicago: Wang, Yupeng, Jie Ren, Sarang Gopalakrishnan, and Romain Vasseur. “Superdiffusive Transport in Chaotic Quantum Systems with Nodal Interactions.” Physical Review Letters. American Physical Society, 2025. https://doi.org/10.1103/xx9z-4j6c. ieee: Y. Wang, J. Ren, S. Gopalakrishnan, and R. Vasseur, “Superdiffusive transport in chaotic quantum systems with nodal interactions,” Physical Review Letters, vol. 135, no. 16. American Physical Society, 2025. ista: Wang Y, Ren J, Gopalakrishnan S, Vasseur R. 2025. Superdiffusive transport in chaotic quantum systems with nodal interactions. Physical Review Letters. 135(16), 166303. mla: Wang, Yupeng, et al. “Superdiffusive Transport in Chaotic Quantum Systems with Nodal Interactions.” Physical Review Letters, vol. 135, no. 16, 166303, American Physical Society, 2025, doi:10.1103/xx9z-4j6c. short: Y. Wang, J. Ren, S. Gopalakrishnan, R. Vasseur, Physical Review Letters 135 (2025). corr_author: '1' date_created: 2025-10-20T11:07:35Z date_published: 2025-10-15T00:00:00Z date_updated: 2025-10-21T07:47:07Z day: '15' ddc: - '530' department: - _id: MaSe doi: 10.1103/xx9z-4j6c external_id: arxiv: - '2501.08381' file: - access_level: open_access checksum: 928c2991aef252fe81d476b61806743f content_type: application/pdf creator: dernst date_created: 2025-10-21T07:44:24Z date_updated: 2025-10-21T07:44:24Z file_id: '20512' file_name: 2025_PhysReviewLetters_Wang.pdf file_size: 388263 relation: main_file success: 1 file_date_updated: 2025-10-21T07:44:24Z has_accepted_license: '1' intvolume: ' 135' issue: '16' language: - iso: eng month: '10' oa: 1 oa_version: Published Version 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: Superdiffusive transport in chaotic quantum systems with nodal interactions 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: 135 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '20709' abstract: - lang: eng text: Non-Hermitian many-body localization (NH MBL) has emerged as a possible scenario for stable localization in open systems, as suggested by spectral indicators identifying a putative transition for finite system sizes. In this work, we shift the focus to dynamical probes, specifically the steady-state spin current, to investigate transport properties in a disordered, non-Hermitian XXZ spin chain. Through exact diagonalization for small systems and tensor-network methods for larger chains, we demonstrate that the steady-state current remains finite and decays exponentially with disorder strength, showing no evidence of a transition up to disorder values far beyond the previously claimed critical point. Our results reveal a stark discrepancy between spectral indicators, which suggest localization, and transport behavior, which indicates delocalization. This highlights the importance of dynamical observables in characterizing NH MBL and suggests that traditional spectral measures may not fully capture the physics of non-Hermitian systems. Additionally, we observe a noncommutativity of limits in system size and time, further complicating the interpretation of finite-size studies. These findings challenge the existence of NH MBL in the studied model and underscore the need for alternative approaches to understanding localization in non-Hermitian settings. acknowledgement: "F.B. thanks Giuseppe de Tomasi and Oskar A. Prośniak for discussion. P.B. acknowledges support by the Austrian Science Fund (FWF) (Grant Agreement No. 10.55776/ESP9057324). This research was funded in whole or in part by the Austrian Science Fund (FWF) [10.55776/COE1]. The numerical simulations were performed using the ITensor library [73] on the Vienna Scientific Cluster (VSC) and on the MPIPKS HPC cluster. M.L. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2111—390814868. F.R. acknowledges support by the European Union-Next Generation EU with the project “Quantum Optics in Many-Body photonic Environments” (QOMBE) code SOE2024_0000084-CUP B77G24000480006. Open\r\naccess publication funded by Max Planck Society." article_number: L042014 article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Pietro full_name: Brighi, Pietro id: 4115AF5C-F248-11E8-B48F-1D18A9856A87 last_name: Brighi orcid: 0000-0002-7969-2729 - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Federico full_name: Roccati, Federico last_name: Roccati - first_name: Federico full_name: Balducci, Federico last_name: Balducci citation: ama: Brighi P, Ljubotina M, Roccati F, Balducci F. Finite steady-state current defies non-Hermitian many-body localization. Physical Review Research. 2025;7(4). doi:10.1103/crwj-x7j8 apa: Brighi, P., Ljubotina, M., Roccati, F., & Balducci, F. (2025). Finite steady-state current defies non-Hermitian many-body localization. Physical Review Research. American Physical Society. https://doi.org/10.1103/crwj-x7j8 chicago: Brighi, Pietro, Marko Ljubotina, Federico Roccati, and Federico Balducci. “Finite Steady-State Current Defies Non-Hermitian Many-Body Localization.” Physical Review Research. American Physical Society, 2025. https://doi.org/10.1103/crwj-x7j8. ieee: P. Brighi, M. Ljubotina, F. Roccati, and F. Balducci, “Finite steady-state current defies non-Hermitian many-body localization,” Physical Review Research, vol. 7, no. 4. American Physical Society, 2025. ista: Brighi P, Ljubotina M, Roccati F, Balducci F. 2025. Finite steady-state current defies non-Hermitian many-body localization. Physical Review Research. 7(4), L042014. mla: Brighi, Pietro, et al. “Finite Steady-State Current Defies Non-Hermitian Many-Body Localization.” Physical Review Research, vol. 7, no. 4, L042014, American Physical Society, 2025, doi:10.1103/crwj-x7j8. short: P. Brighi, M. Ljubotina, F. Roccati, F. Balducci, Physical Review Research 7 (2025). date_created: 2025-11-30T23:02:08Z date_published: 2025-10-01T00:00:00Z date_updated: 2025-12-01T08:02:13Z day: '01' ddc: - '530' department: - _id: MaSe doi: 10.1103/crwj-x7j8 external_id: arxiv: - '2504.02460' file: - access_level: open_access checksum: c4e582ab64ab9f8fface70bf2fd31882 content_type: application/pdf creator: dernst date_created: 2025-12-01T08:00:19Z date_updated: 2025-12-01T08:00:19Z file_id: '20715' file_name: 2025_PhysReviewResearch_Brighi.pdf file_size: 483879 relation: main_file success: 1 file_date_updated: 2025-12-01T08:00:19Z has_accepted_license: '1' intvolume: ' 7' issue: '4' language: - iso: eng month: '10' oa: 1 oa_version: Published Version publication: Physical Review Research publication_identifier: eissn: - 2643-1564 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Finite steady-state current defies non-Hermitian many-body localization 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: publisher OA_type: hybrid PlanS_conform: '1' _id: '19012' abstract: - lang: eng text: False vacuum decay—the transition from a metastable quantum state to a true vacuum state—plays an important role in quantum field theory and non-equilibrium phenomena such as phase transitions and dynamical metastability. The non-perturbative nature of false vacuum decay and the limited experimental access to this process make it challenging to study, leaving several open questions regarding how true vacuum bubbles form, move and interact. Here we observe quantized bubble formation in real time, a key feature of false vacuum decay dynamics, using a quantum annealer with 5,564 superconducting flux qubits. We develop an effective model that captures both initial bubble creation and subsequent interactions, and remains accurate under dissipation. The annealer reveals coherent scaling laws in the driven many-body dynamics for more than 1,000 intrinsic qubit time units. This work provides a method for investigating false vacuum dynamics of large quantum systems in quantum annealers. acknowledgement: J.V., D.W. and M.W. acknowledge support from the project Jülich UNified Infrastructure for Quantum computing (JUNIQ) that has received funding from the German Federal Ministry of Education and Research (BMBF) and the Ministry of Culture and Science of the State of North Rhine-Westphalia. A.R. acknowledges support from the project HPCQS (101018180) of the European High-Performance Computing Joint Undertaking (EuroHPC JU). J.-Y.D., A.H. and Z.P. acknowledge support from the Leverhulme Trust Research Leadership Award RL-2019-015 and EPSRC grant nos. EP/R513258/1 and EP/W026848/1. J.-Y.D. acknowledges support from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement no.101034413. This research was supported in part by grant no. NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP). Computational portions of this research work were carried out on ARC3 and ARC4, part of the high-performance computing facilities at the University of Leeds. G.H. acknowledges financial support from ARIS, P1-0040 Nonequilibrium Quantum System Dynamics. We gratefully acknowledge the Jülich Supercomputing Centre (https://www.fz-juelich.de/en/ias/jsc) for funding this project by providing computing time on the D-Wave Advantage System JUPSI through JUNIQ. We acknowledge helpful theoretical discussions with G. Lagnese and the quantum-simulation-related discussions with D-Wave’s experimental team, particularly A. MacDonald, G. Poulin-Lamarre, A. Daian and A. Berkley. We also thank V. Goliber and A. Mason for patiently organizing and mediating the corresponding meetings that enabled the discussions with D-Wave’s team. J.V., A.R., D.W., F.J., M.W. and K.M. gratefully acknowledge the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) for funding this project by providing computing time on the GCS Supercomputer JUWELS at Jülich Supercomputing Centre (JSC). article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Jaka full_name: Vodeb, Jaka last_name: Vodeb - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 - first_name: Andrew full_name: Hallam, Andrew last_name: Hallam - first_name: Andrea full_name: Rava, Andrea last_name: Rava - first_name: Gregor full_name: Humar, Gregor last_name: Humar - first_name: Dennis full_name: Willsch, Dennis last_name: Willsch - first_name: Fengping full_name: Jin, Fengping last_name: Jin - first_name: Madita full_name: Willsch, Madita last_name: Willsch - first_name: Kristel full_name: Michielsen, Kristel last_name: Michielsen - first_name: Zlatko full_name: Papić, Zlatko last_name: Papić citation: ama: Vodeb J, Desaules J-YM, Hallam A, et al. Stirring the false vacuum via interacting quantized bubbles on a 5,564-qubit quantum annealer. Nature Physics. 2025;21:386-392. doi:10.1038/s41567-024-02765-w apa: Vodeb, J., Desaules, J.-Y. M., Hallam, A., Rava, A., Humar, G., Willsch, D., … Papić, Z. (2025). Stirring the false vacuum via interacting quantized bubbles on a 5,564-qubit quantum annealer. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-024-02765-w chicago: Vodeb, Jaka, Jean-Yves Marc Desaules, Andrew Hallam, Andrea Rava, Gregor Humar, Dennis Willsch, Fengping Jin, Madita Willsch, Kristel Michielsen, and Zlatko Papić. “Stirring the False Vacuum via Interacting Quantized Bubbles on a 5,564-Qubit Quantum Annealer.” Nature Physics. Springer Nature, 2025. https://doi.org/10.1038/s41567-024-02765-w. ieee: J. Vodeb et al., “Stirring the false vacuum via interacting quantized bubbles on a 5,564-qubit quantum annealer,” Nature Physics, vol. 21. Springer Nature, pp. 386–392, 2025. ista: Vodeb J, Desaules J-YM, Hallam A, Rava A, Humar G, Willsch D, Jin F, Willsch M, Michielsen K, Papić Z. 2025. Stirring the false vacuum via interacting quantized bubbles on a 5,564-qubit quantum annealer. Nature Physics. 21, 386–392. mla: Vodeb, Jaka, et al. “Stirring the False Vacuum via Interacting Quantized Bubbles on a 5,564-Qubit Quantum Annealer.” Nature Physics, vol. 21, Springer Nature, 2025, pp. 386–92, doi:10.1038/s41567-024-02765-w. short: J. Vodeb, J.-Y.M. Desaules, A. Hallam, A. Rava, G. Humar, D. Willsch, F. Jin, M. Willsch, K. Michielsen, Z. Papić, Nature Physics 21 (2025) 386–392. corr_author: '1' date_created: 2025-02-06T10:07:13Z date_published: 2025-03-01T00:00:00Z date_updated: 2025-09-30T10:29:15Z day: '01' ddc: - '530' department: - _id: MaSe doi: 10.1038/s41567-024-02765-w ec_funded: 1 external_id: arxiv: - '2406.14718' isi: - '001412684400001' pmid: - '40093970' file: - access_level: open_access checksum: b005ccf7448fee29c187cbc9b1944893 content_type: application/pdf creator: dernst date_created: 2025-08-05T11:56:53Z date_updated: 2025-08-05T11:56:53Z file_id: '20127' file_name: 2025_NaturePhysics_Vodeb.pdf file_size: 2252107 relation: main_file success: 1 file_date_updated: 2025-08-05T11:56:53Z has_accepted_license: '1' intvolume: ' 21' isi: 1 language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: 386-392 pmid: 1 project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' publication: Nature Physics publication_identifier: eissn: - 1745-2481 issn: - 1745-2473 publication_status: published publisher: Springer Nature quality_controlled: '1' related_material: link: - description: News on ISTA Website relation: press_release url: https://ista.ac.at/en/news/dancing-bubbles-model-a-cosmic-disaster/ scopus_import: '1' status: public title: Stirring the false vacuum via interacting quantized bubbles on a 5,564-qubit quantum annealer 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: 21 year: '2025' ... --- OA_place: repository OA_type: green _id: '21272' abstract: - lang: eng text: Finding the ground state of Ising spin glasses is notoriously difficult due to disorder and frustration. Often, this challenge is framed as a combinatorial optimization problem, for which a common strategy employs simulated annealing, a Monte Carlo (MC)-based algorithm that updates spins one at a time. Yet, these localized updates can cause the system to become trapped in local minima. Cluster algorithms (CAs) were developed to address this limitation and have demonstrated considerable success in studying ferromagnetic systems; however, they tend to encounter percolation issues when applied to generic spin glasses. In this work, we introduce a novel CA designed to tackle these challenges by leveraging precomputed two-point correlations, aiming solve combinatorial optimization problems in the form of Max-Cut more efficiently. In our approach, clusters are formed probabilistically based on these correlations. Various classical and quantum algorithms can be employed to generate correlations that embody information about the energy landscape of the problem. By utilizing this information, the algorithm aims to identify groups of spins whose simultaneous flipping induces large transitions in configuration space with high acceptance probability - even at low energy levels - thereby escaping local minima more effectively. Notably, clusters generated using correlations from the Quantum Approximate Optimization Algorithm exhibit high acceptance rates at low temperatures. These acceptance rates often increase with circuit depth, accelerating the algorithm and enabling more efficient exploration of the solution space. acknowledgement: "P.J.E was partially funded by the German BMWK project QCHALLenge (Grant No. 01MQ22008B).\r\n" article_processing_charge: No arxiv: 1 author: - first_name: Peter J. full_name: Eder, Peter J. last_name: Eder - first_name: Aron full_name: Kerschbaumer, Aron id: ade85a9c-3200-11ee-973b-91c1eb240410 last_name: Kerschbaumer orcid: 0009-0002-2370-8661 - first_name: Jernej Rudi full_name: Finžgar, Jernej Rudi last_name: Finžgar - first_name: Raimel A full_name: Medina Ramos, Raimel A id: CE680B90-D85A-11E9-B684-C920E6697425 last_name: Medina Ramos orcid: 0000-0002-5383-2869 - first_name: Martin J. A. full_name: Schuetz, Martin J. A. last_name: Schuetz - first_name: Helmut G. full_name: Katzgraber, Helmut G. last_name: Katzgraber - first_name: Sarah full_name: Braun, Sarah last_name: Braun - first_name: Christian B. full_name: Mendl, Christian B. last_name: Mendl citation: ama: 'Eder PJ, Kerschbaumer A, Finžgar JR, et al. Quantum-guided cluster algorithms for combinatorial optimization. In: 2025 IEEE International Conference on Quantum Computing and Engineering. IEEE; 2025. doi:10.1109/qce65121.2025.00033' apa: 'Eder, P. J., Kerschbaumer, A., Finžgar, J. R., Medina Ramos, R. A., Schuetz, M. J. A., Katzgraber, H. G., … Mendl, C. B. (2025). Quantum-guided cluster algorithms for combinatorial optimization. In 2025 IEEE International Conference on Quantum Computing and Engineering. Albuquerque, NM, United States: IEEE. https://doi.org/10.1109/qce65121.2025.00033' chicago: Eder, Peter J., Aron Kerschbaumer, Jernej Rudi Finžgar, Raimel A Medina Ramos, Martin J. A. Schuetz, Helmut G. Katzgraber, Sarah Braun, and Christian B. Mendl. “Quantum-Guided Cluster Algorithms for Combinatorial Optimization.” In 2025 IEEE International Conference on Quantum Computing and Engineering. IEEE, 2025. https://doi.org/10.1109/qce65121.2025.00033. ieee: P. J. Eder et al., “Quantum-guided cluster algorithms for combinatorial optimization,” in 2025 IEEE International Conference on Quantum Computing and Engineering, Albuquerque, NM, United States, 2025. ista: 'Eder PJ, Kerschbaumer A, Finžgar JR, Medina Ramos RA, Schuetz MJA, Katzgraber HG, Braun S, Mendl CB. 2025. Quantum-guided cluster algorithms for combinatorial optimization. 2025 IEEE International Conference on Quantum Computing and Engineering. QCE: International Conference on Quantum Computing and Engineering.' mla: Eder, Peter J., et al. “Quantum-Guided Cluster Algorithms for Combinatorial Optimization.” 2025 IEEE International Conference on Quantum Computing and Engineering, IEEE, 2025, doi:10.1109/qce65121.2025.00033. short: P.J. Eder, A. Kerschbaumer, J.R. Finžgar, R.A. Medina Ramos, M.J.A. Schuetz, H.G. Katzgraber, S. Braun, C.B. Mendl, in:, 2025 IEEE International Conference on Quantum Computing and Engineering, IEEE, 2025. conference: end_date: 2025-09-05 location: Albuquerque, NM, United States name: 'QCE: International Conference on Quantum Computing and Engineering' start_date: 2025-08-30 corr_author: '1' date_created: 2026-02-17T08:00:17Z date_published: 2025-09-01T00:00:00Z date_updated: 2026-02-18T08:45:56Z day: '01' department: - _id: MaSe doi: 10.1109/qce65121.2025.00033 external_id: arxiv: - '2508.10656' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2508.10656 month: '09' oa: 1 oa_version: Preprint publication: 2025 IEEE International Conference on Quantum Computing and Engineering publication_identifier: eisbn: - '9798331557362' publication_status: published publisher: IEEE quality_controlled: '1' status: public title: Quantum-guided cluster algorithms for combinatorial optimization type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '20646' abstract: - lang: eng text: Describing general quantum many-body dynamics is a challenging task due to the exponential growth of the Hilbert space with system size. The time-dependent variational principle (TDVP) provides a powerful tool to tackle this task by projecting quantum evolution onto a classical dynamical system within a variational manifold. In classical systems, periodic orbits play a crucial role in understanding the structure of the phase space and the long-term behavior of the system. However, finding periodic orbits is generally difficult, and their existence and properties in generic TDVP dynamics over matrix product states have remained largely unexplored. In this work, we develop an algorithm to systematically identify and characterize periodic orbits in TDVP dynamics. Applying our method to the periodically kicked Ising model, we uncover both stable and unstable periodic orbits. We characterize the Kolmogorov-Arnold-Moser tori in the vicinity of stable periodic orbits and track the change of the periodic orbits as we modify the Hamiltonian parameters. We observe that periodic orbits exist at any value of the coupling constant of the kicked Ising model between prethermal and fully thermalizing regimes, but their relevance to quantum dynamics and imprint on quantum eigenstates diminishes as the system leaves the prethermal regime. Our results demonstrate that periodic orbits provide valuable insights into the TDVP approximation of quantum many-body evolution and establish a closer connection between quantum and classical chaos. acknowledgement: We acknowledge useful discussions with C. Kollath, A. Green, and D. Huse. E.P., M.L., and M.S. acknowledge support by the European Research Council under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). This research was funded in whole or in part by the Austrian Science Fund (FWF) (Grant No. 10.55776/COE1). For open access purposes, the author has applied a CC BY public copyright license to any author accepted manuscript version arising from this submission. M.L. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2111—390814868. This research was supported in part by National Science Foundation (NSF) Grant No. PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP) and by the Erwin Schrödinger International Institute for Mathematics and Physics (ESI). article_number: '040333' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Elena full_name: Petrova, Elena id: 0ac84990-897b-11ed-a09c-f5abb56a4ede last_name: Petrova - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Gökhan full_name: Yalniz, Gökhan id: 66E74FA2-D8BF-11E9-8249-8DE2E5697425 last_name: Yalniz orcid: 0000-0002-8490-9312 - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 citation: ama: Petrova E, Ljubotina M, Yalniz G, Serbyn M. Finding periodic orbits in projected quantum many-body dynamics. PRX Quantum. 2025;6(4). doi:10.1103/tldp-kvkd apa: Petrova, E., Ljubotina, M., Yalniz, G., & Serbyn, M. (2025). Finding periodic orbits in projected quantum many-body dynamics. PRX Quantum. American Physical Society. https://doi.org/10.1103/tldp-kvkd chicago: Petrova, Elena, Marko Ljubotina, Gökhan Yalniz, and Maksym Serbyn. “Finding Periodic Orbits in Projected Quantum Many-Body Dynamics.” PRX Quantum. American Physical Society, 2025. https://doi.org/10.1103/tldp-kvkd. ieee: E. Petrova, M. Ljubotina, G. Yalniz, and M. Serbyn, “Finding periodic orbits in projected quantum many-body dynamics,” PRX Quantum, vol. 6, no. 4. American Physical Society, 2025. ista: Petrova E, Ljubotina M, Yalniz G, Serbyn M. 2025. Finding periodic orbits in projected quantum many-body dynamics. PRX Quantum. 6(4), 040333. mla: Petrova, Elena, et al. “Finding Periodic Orbits in Projected Quantum Many-Body Dynamics.” PRX Quantum, vol. 6, no. 4, 040333, American Physical Society, 2025, doi:10.1103/tldp-kvkd. short: E. Petrova, M. Ljubotina, G. Yalniz, M. Serbyn, PRX Quantum 6 (2025). corr_author: '1' date_created: 2025-11-14T09:40:52Z date_published: 2025-11-12T00:00:00Z date_updated: 2026-04-28T13:14:29Z day: '12' ddc: - '539' department: - _id: GradSch - _id: BjHo - _id: MaSe doi: 10.1103/tldp-kvkd ec_funded: 1 external_id: arxiv: - '2504.12472' isi: - '001616473700003' file: - access_level: open_access checksum: 5d6d04ac518b4118405334e1ddc7a56d content_type: application/pdf creator: gyalniz date_created: 2025-11-14T09:44:10Z date_updated: 2025-11-14T09:44:10Z file_id: '20647' file_name: tldp-kvkd.pdf file_size: 2504713 relation: main_file success: 1 file_date_updated: 2025-11-14T09:44:10Z has_accepted_license: '1' intvolume: ' 6' isi: 1 issue: '4' language: - iso: eng month: '11' 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: PRX Quantum publication_identifier: eissn: - 2691-3399 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: link: - description: News on ISTA website relation: press_release url: https://ista.ac.at/en/news/reaching-for-the-quantum-scars/ scopus_import: '1' status: public title: Finding periodic orbits in projected quantum many-body dynamics 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: 6 year: '2025' ... --- OA_place: publisher OA_type: hybrid _id: '19664' abstract: - lang: eng text: Persistent revivals recently observed in Rydberg atom simulators have challenged our understanding of thermalization and attracted much interest to the concept of quantum many-body scars (QMBSs). QMBSs are non-thermal highly excited eigenstates that coexist with typical eigenstates in the spectrum of many-body Hamiltonians, and have since been reported in multiple theoretical models, including the so-called PXP model, approximately realized by Rydberg simulators. At the same time, questions of how common QMBSs are and in what models they are physically realized remain open. In this Letter, we demonstrate that QMBSs exist in a broader family of models that includes and generalizes PXP to longer-range constraints and states with different periodicity. We show that in each model, multiple QMBS families can be found. Each of them relies on a different approximate algebra, leading to oscillatory dynamics in all cases. However, in contrast to the PXP model, their observation requires launching dynamics from weakly entangled initial states rather than from a product state. QMBSs reported here may be experimentally probed using Rydberg atom simulator in the regime of longer-range Rydberg blockades. acknowledgement: The authors are grateful to Zlatko Papić, Dolev Bluvstein, Nishad Maskara, Marcello Dalmonte, Thomas Iadecola, and Johannes Feldmeier for insightful discussions. A. K., M. L., and M. S. acknowledge support by the European Research Council under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). J.-Y. D. acknowledges funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101034413. article_number: '160401' article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Aron full_name: Kerschbaumer, Aron id: ade85a9c-3200-11ee-973b-91c1eb240410 last_name: Kerschbaumer orcid: 0009-0002-2370-8661 - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 citation: ama: Kerschbaumer A, Ljubotina M, Serbyn M, Desaules J-YM. Quantum many-body scars beyond the PXP model in Rydberg simulators. Physical Review Letters. 2025;134(16). doi:10.1103/PhysRevLett.134.160401 apa: Kerschbaumer, A., Ljubotina, M., Serbyn, M., & Desaules, J.-Y. M. (2025). Quantum many-body scars beyond the PXP model in Rydberg simulators. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.134.160401 chicago: Kerschbaumer, Aron, Marko Ljubotina, Maksym Serbyn, and Jean-Yves Marc Desaules. “Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.” Physical Review Letters. American Physical Society, 2025. https://doi.org/10.1103/PhysRevLett.134.160401. ieee: A. Kerschbaumer, M. Ljubotina, M. Serbyn, and J.-Y. M. Desaules, “Quantum many-body scars beyond the PXP model in Rydberg simulators,” Physical Review Letters, vol. 134, no. 16. American Physical Society, 2025. ista: Kerschbaumer A, Ljubotina M, Serbyn M, Desaules J-YM. 2025. Quantum many-body scars beyond the PXP model in Rydberg simulators. Physical Review Letters. 134(16), 160401. mla: Kerschbaumer, Aron, et al. “Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.” Physical Review Letters, vol. 134, no. 16, 160401, American Physical Society, 2025, doi:10.1103/PhysRevLett.134.160401. short: A. Kerschbaumer, M. Ljubotina, M. Serbyn, J.-Y.M. Desaules, Physical Review Letters 134 (2025). date_created: 2025-05-11T22:02:38Z date_published: 2025-04-22T00:00:00Z date_updated: 2026-04-28T13:34:57Z day: '22' ddc: - '530' department: - _id: MaSe doi: 10.1103/PhysRevLett.134.160401 ec_funded: 1 external_id: arxiv: - '2410.18913' isi: - '001480669300011' pmid: - '40344113' file: - access_level: open_access checksum: b7f581291e20f152d0efc64727314ca2 content_type: application/pdf creator: dernst date_created: 2025-05-12T07:33:38Z date_updated: 2025-05-12T07:33:38Z file_id: '19677' file_name: 2025_PhysReviewLetters_Kerschbaumer.pdf file_size: 1028993 relation: main_file success: 1 file_date_updated: 2025-05-12T07:33:38Z has_accepted_license: '1' intvolume: ' 134' isi: 1 issue: '16' language: - iso: eng month: '04' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 23841C26-32DE-11EA-91FC-C7463DDC885E call_identifier: H2020 grant_number: '850899' name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control' - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: link: - description: News on ISTA website relation: press_release url: https://ista.ac.at/en/news/a-sky-full-of-quantum-scars/ record: - id: '19623' relation: research_data status: public scopus_import: '1' status: public title: Quantum many-body scars beyond the PXP model in Rydberg simulators 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: 134 year: '2025' ... --- _id: '19623' abstract: - lang: eng text: "Persistent revivals recently observed in Rydberg atom simulators have challenged our understanding of thermalization and attracted much interest to the concept of quantum many-body scars (QMBSs). QMBSs are non-thermal highly excited eigenstates that coexist with typical eigenstates in the spectrum of many-body Hamiltonians, and have since been reported in multiple theoretical models, including the so-called PXP model, approximately realized by Rydberg simulators. At the same time, questions of how common QMBSs are and in what models they are physically realized remain open. In this Letter, we demonstrate that QMBSs exist in a broader family of models that includes and generalizes PXP to longer-range constraints and states with different periodicity. We show that in each model, multiple QMBS families can be found. Each of them relies on a different approximate \U0001D530\U0001D532⁡(2) algebra, leading to oscillatory dynamics in all cases. However, in contrast to the PXP model, their observation requires launching dynamics from weakly entangled initial states rather than from a product state. QMBSs reported here may be experimentally probed using Rydberg atom simulator in the regime of longer-range Rydberg blockades." acknowledged_ssus: - _id: ScienComp acknowledgement: The authors are grateful to Zlatko Papić, Dolev Bluvstein, Nishad Maskara, Marcello Dalmonte, Thomas Iadecola, and Johannes Feldmeier for insightful discussions. A. K., M. L., and M. S. acknowledge support by the European Research Council under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). J.-Y. D. acknowledges funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 101034413. article_processing_charge: No author: - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 citation: ama: Desaules J-YM. Research Data for “Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.” 2025. doi:10.15479/AT:ISTA:19623 apa: Desaules, J.-Y. M. (2025). Research Data for “Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.” Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:19623 chicago: Desaules, Jean-Yves Marc. “Research Data for ‘Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.’” Institute of Science and Technology Austria, 2025. https://doi.org/10.15479/AT:ISTA:19623. ieee: J.-Y. M. Desaules, “Research Data for ‘Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.’” Institute of Science and Technology Austria, 2025. ista: Desaules J-YM. 2025. Research Data for ‘Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators’, Institute of Science and Technology Austria, 10.15479/AT:ISTA:19623. mla: Desaules, Jean-Yves Marc. Research Data for “Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators.” Institute of Science and Technology Austria, 2025, doi:10.15479/AT:ISTA:19623. short: J.-Y.M. Desaules, (2025). contributor: - contributor_type: researcher first_name: Aron id: ade85a9c-3200-11ee-973b-91c1eb240410 last_name: Kerschbaumer - contributor_type: researcher first_name: Marko last_name: Ljubotina - contributor_type: researcher first_name: Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - contributor_type: researcher first_name: Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 corr_author: '1' date_created: 2025-04-24T19:58:46Z date_published: 2025-04-24T00:00:00Z date_updated: 2026-04-28T13:34:56Z day: '24' ddc: - '530' department: - _id: MaSe doi: 10.15479/AT:ISTA:19623 ec_funded: 1 file: - access_level: open_access checksum: d073314c4dc95d93feaadbff188ce4a1 content_type: application/zip creator: jdesaule date_created: 2025-05-05T07:14:17Z date_updated: 2025-05-05T07:14:17Z file_id: '19646' file_name: Data+Code.zip file_size: 583478621 relation: main_file success: 1 - access_level: open_access checksum: d386a2364fb1147ef6dad30ad029c080 content_type: text/plain creator: jdesaule date_created: 2025-05-05T07:13:46Z date_updated: 2025-05-05T07:13:46Z file_id: '19647' file_name: readme.txt file_size: 15856 relation: main_file success: 1 file_date_updated: 2025-05-05T07:14:17Z has_accepted_license: '1' keyword: - quantum many-body scars - non-equilibrium physics - Rydberg atoms month: '04' oa: 1 oa_version: None project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' - _id: 23841C26-32DE-11EA-91FC-C7463DDC885E call_identifier: H2020 grant_number: '850899' name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control' publisher: Institute of Science and Technology Austria related_material: record: - id: '19664' relation: used_in_publication status: public status: public title: Research Data for "Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators" tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: research_data user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2025' ... --- _id: '18110' abstract: - lang: eng text: We study a chaotic particle-conserving kinetically constrained model, with a single parameter which allows us to break reflection symmetry. Through extensive numerical simulations we find that the domain wall state shows a variety of dynamical behaviors from localization all the way to ballistic transport, depending on the value of the reflection breaking parameter. Surprisingly, such anomalous behavior is not mirrored in infinite-temperature dynamics, which appear to scale diffusively, in line with expectations for generic interacting models. However, studying the particle density gradient, we show that the lack of reflection symmetry affects infinite-temperature dynamics, resulting in an asymmetric dynamical structure factor. This is in disagreement with normal diffusion and suggests that the model may also exhibit anomalous dynamics at infinite temperature in the thermodynamic limit. Finally, we observe low-entangled eigenstates in the spectrum of the model, a telltale sign of quantum many-body scars. acknowledgement: "The authors acknowledge useful discussions with M. Serbyn, Z. Papic, and A. Nunnenkamp. ´\r\nP.B. is supported by the Erwin Schrödinger Center for Quantum Science & Technology (ESQ) of the Österreichische Akademie der Wissenschaften (ÖAW) under the Discovery Grant. M.L. acknowledges support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement\r\nNo. 850899). The numerical simulations were performed using the ITensor library [68] on the Vienna Scientific Cluster (VSC)." article_number: L100304 article_processing_charge: No article_type: letter_note arxiv: 1 author: - first_name: Pietro full_name: Brighi, Pietro id: 4115AF5C-F248-11E8-B48F-1D18A9856A87 last_name: Brighi orcid: 0000-0002-7969-2729 - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 citation: ama: Brighi P, Ljubotina M. Anomalous transport in the kinetically constrained quantum East-West model. Physical Review B. 2024;110(10). doi:10.1103/PhysRevB.110.L100304 apa: Brighi, P., & Ljubotina, M. (2024). Anomalous transport in the kinetically constrained quantum East-West model. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.110.L100304 chicago: Brighi, Pietro, and Marko Ljubotina. “Anomalous Transport in the Kinetically Constrained Quantum East-West Model.” Physical Review B. American Physical Society, 2024. https://doi.org/10.1103/PhysRevB.110.L100304. ieee: P. Brighi and M. Ljubotina, “Anomalous transport in the kinetically constrained quantum East-West model,” Physical Review B, vol. 110, no. 10. American Physical Society, 2024. ista: Brighi P, Ljubotina M. 2024. Anomalous transport in the kinetically constrained quantum East-West model. Physical Review B. 110(10), L100304. mla: Brighi, Pietro, and Marko Ljubotina. “Anomalous Transport in the Kinetically Constrained Quantum East-West Model.” Physical Review B, vol. 110, no. 10, L100304, American Physical Society, 2024, doi:10.1103/PhysRevB.110.L100304. short: P. Brighi, M. Ljubotina, Physical Review B 110 (2024). corr_author: '1' date_created: 2024-09-22T22:01:42Z date_published: 2024-09-11T00:00:00Z date_updated: 2025-09-08T09:49:29Z day: '11' department: - _id: MaSe doi: 10.1103/PhysRevB.110.L100304 ec_funded: 1 external_id: arxiv: - '2405.02102' isi: - '001361617100003' intvolume: ' 110' isi: 1 issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2405.02102 month: '09' oa: 1 oa_version: Preprint 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 B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Anomalous transport in the kinetically constrained quantum East-West model type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 110 year: '2024' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '18176' abstract: - lang: eng text: Introducing a class of SU(2) invariant quantum unitary circuits generating chiral transport, we examine the role of broken space-reflection and time-reversal symmetries on spin-transport properties. Upon adjusting parameters of local unitary gates, the dynamics can be either chaotic or integrable. The latter corresponds to a generalization of the space-time discretized (Trotterized) higher-spin quantum Heisenberg chain. We demonstrate that breaking of space-reflection symmetry results in a drift in the dynamical spin susceptibility. Remarkably, we find a universal drift velocity given by a simple formula, which, at zero average magnetization, depends only on the values of SU(2) Casimir invariants associated with local spins. In the integrable case, the drift velocity formula is confirmed analytically based on the exact solution of thermodynamic Bethe ansatz equations. Finally, by inspecting the large fluctuations of the time-integrated current between two halves of the system in stationary maximum-entropy states, we demonstrate violation of the Gallavotti-Cohen symmetry, implying that such states cannot be regarded as equilibrium ones. We show that the scaled cumulant generating function of the time-integrated current instead obeys a generalized fluctuation relation. acknowledgement: "The authors thank Denis Bernard, Jérôme Dubail, Hosho Katsura, Kareljan Schoutens, and Alberto Zorzato for stimulating discussions. This work has been supported by: Slovenian Research Agency (ARIS) under Grants No. N1-0219 (T.P., L.Z.), No. N1-0334 (T.P., L.Z.), No. N1-0243 (E.I.), and under Research Program P1-0402 (E.I., T.P., L.Z.). European Research Council (ERC) under Consolidator Grant No. 771536—NEMO (L.Z.), Advanced Grant No.\r\n101096208—QUEST (T.P., L.Z.), and Starting Grant No. 850899—NEQuM (M.L.). Simons Foundation under Simons Junior Fellowship Grant No. 1141511 (Ž.K.). M.L. acknowledges the hospitality of the Aspen Center for Physics, which is supported by National Science Foundation Grant No. PHY-2210452. Numerical simulations were performed using the ITensor library [117]. " article_number: '030356' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Lenart full_name: Zadnik, Lenart last_name: Zadnik - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Žiga full_name: Krajnik, Žiga last_name: Krajnik - first_name: Enej full_name: Ilievski, Enej last_name: Ilievski - first_name: Tomaž full_name: Prosen, Tomaž last_name: Prosen citation: ama: Zadnik L, Ljubotina M, Krajnik Ž, Ilievski E, Prosen T. Quantum many-body spin ratchets. PRX Quantum. 2024;5(3). doi:10.1103/PRXQuantum.5.030356 apa: Zadnik, L., Ljubotina, M., Krajnik, Ž., Ilievski, E., & Prosen, T. (2024). Quantum many-body spin ratchets. PRX Quantum. American Physical Society. https://doi.org/10.1103/PRXQuantum.5.030356 chicago: Zadnik, Lenart, Marko Ljubotina, Žiga Krajnik, Enej Ilievski, and Tomaž Prosen. “Quantum Many-Body Spin Ratchets.” PRX Quantum. American Physical Society, 2024. https://doi.org/10.1103/PRXQuantum.5.030356. ieee: L. Zadnik, M. Ljubotina, Ž. Krajnik, E. Ilievski, and T. Prosen, “Quantum many-body spin ratchets,” PRX Quantum, vol. 5, no. 3. American Physical Society, 2024. ista: Zadnik L, Ljubotina M, Krajnik Ž, Ilievski E, Prosen T. 2024. Quantum many-body spin ratchets. PRX Quantum. 5(3), 030356. mla: Zadnik, Lenart, et al. “Quantum Many-Body Spin Ratchets.” PRX Quantum, vol. 5, no. 3, 030356, American Physical Society, 2024, doi:10.1103/PRXQuantum.5.030356. short: L. Zadnik, M. Ljubotina, Ž. Krajnik, E. Ilievski, T. Prosen, PRX Quantum 5 (2024). date_created: 2024-10-06T22:01:12Z date_published: 2024-09-25T00:00:00Z date_updated: 2025-09-08T09:55:09Z day: '25' ddc: - '530' department: - _id: MaSe doi: 10.1103/PRXQuantum.5.030356 ec_funded: 1 external_id: arxiv: - '2406.01571' isi: - '001327172800001' file: - access_level: open_access checksum: bc230631255d3bcf8bcbbc8fdbfefcf2 content_type: application/pdf creator: dernst date_created: 2024-10-07T11:04:12Z date_updated: 2024-10-07T11:04:12Z file_id: '18183' file_name: 2024_PRXQuantum_Zadnik.pdf file_size: 1061648 relation: main_file success: 1 file_date_updated: 2024-10-07T11:04:12Z has_accepted_license: '1' intvolume: ' 5' isi: 1 issue: '3' language: - iso: eng month: '09' 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: PRX Quantum publication_identifier: eissn: - 2691-3399 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Quantum many-body spin ratchets 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: 5 year: '2024' ... --- APC_amount: 3711,01 EUR DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '18488' abstract: - lang: eng text: The advancement of quantum simulators motivates the development of a theoretical framework to assist with efficient state preparation in quantum many-body systems. Generally, preparing a target entangled state via unitary evolution with time-dependent couplings is a challenging task and very little is known about the existence of solutions and their properties. In this work we develop a constructive approach for preparing matrix product states (MPS) via continuous unitary evolution. We provide an explicit construction of the operator that exactly implements the evolution of a given MPS along a specified direction in its tangent space. This operator can be written as a sum of local terms of finite range, yet it is in general non-Hermitian. Relying on the explicit construction of the non-Hermitian generator of the dynamics, we demonstrate the existence of a Hermitian sequence of operators that implements the desired MPS evolution with an error that decreases exponentially with the operator range. The construction is benchmarked on an explicit periodic trajectory in a translationally invariant MPS manifold. We demonstrate that the Floquet unitary generating the dynamics over one period of the trajectory features an approximate MPS-like eigenstate embedded among a sea of thermalizing eigenstates. These results show that our construction is not only useful for state preparation and control of many-body systems, but also provides a generic route towards Floquet scars—periodically driven models with quasilocal generators of dynamics that have exact MPS eigenstates in their spectrum. acknowledgement: We thank L. Piroli, S. Garratt, and A. Molnár for insightful discussions. This research was funded in part by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreements No. 850899 and No. 863476), the Austrian Science Fund (FWF) (Grant DOIs 10.55776/COE1, 10.55776/P36305, and 10.55776/F71), and the European Union (NextGenerationEU). This work was performed in part at the Aspen Center for Physics, which is supported by National Science Foundation Grant PHY-2210452. This research was supported in part by NSF Grant PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP). article_number: '040311' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Elena full_name: Petrova, Elena id: 0ac84990-897b-11ed-a09c-f5abb56a4ede last_name: Petrova - first_name: Norbert full_name: Schuch, Norbert last_name: Schuch - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 citation: ama: Ljubotina M, Petrova E, Schuch N, Serbyn M. Tangent space generators of matrix product states and exact floquet quantum scars. PRX Quantum. 2024;5(4). doi:10.1103/prxquantum.5.040311 apa: Ljubotina, M., Petrova, E., Schuch, N., & Serbyn, M. (2024). Tangent space generators of matrix product states and exact floquet quantum scars. PRX Quantum. American Physical Society. https://doi.org/10.1103/prxquantum.5.040311 chicago: Ljubotina, Marko, Elena Petrova, Norbert Schuch, and Maksym Serbyn. “Tangent Space Generators of Matrix Product States and Exact Floquet Quantum Scars.” PRX Quantum. American Physical Society, 2024. https://doi.org/10.1103/prxquantum.5.040311. ieee: M. Ljubotina, E. Petrova, N. Schuch, and M. Serbyn, “Tangent space generators of matrix product states and exact floquet quantum scars,” PRX Quantum, vol. 5, no. 4. American Physical Society, 2024. ista: Ljubotina M, Petrova E, Schuch N, Serbyn M. 2024. Tangent space generators of matrix product states and exact floquet quantum scars. PRX Quantum. 5(4), 040311. mla: Ljubotina, Marko, et al. “Tangent Space Generators of Matrix Product States and Exact Floquet Quantum Scars.” PRX Quantum, vol. 5, no. 4, 040311, American Physical Society, 2024, doi:10.1103/prxquantum.5.040311. short: M. Ljubotina, E. Petrova, N. Schuch, M. Serbyn, PRX Quantum 5 (2024). corr_author: '1' date_created: 2024-10-29T16:04:05Z date_published: 2024-10-23T00:00:00Z date_updated: 2025-09-08T14:26:29Z day: '23' ddc: - '530' department: - _id: MaSe doi: 10.1103/prxquantum.5.040311 ec_funded: 1 external_id: arxiv: - '2403.12325' isi: - '001346198800001' file: - access_level: open_access checksum: 2e057ba021744d0a74602517935326b3 content_type: application/pdf creator: dernst date_created: 2024-10-30T08:59:09Z date_updated: 2024-10-30T08:59:09Z file_id: '18489' file_name: 2024_PRXQuantum_Ljubotina.pdf file_size: 1151431 relation: main_file success: 1 file_date_updated: 2024-10-30T08:59:09Z has_accepted_license: '1' intvolume: ' 5' isi: 1 issue: '4' language: - iso: eng month: '10' 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: PRX Quantum publication_identifier: eissn: - 2691-3399 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Tangent space generators of matrix product states and exact floquet quantum scars 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: 5 year: '2024' ... --- OA_type: closed access _id: '18616' abstract: - lang: eng text: By patterning an ultrathin layered structure with tiny wells, physicists have created and imaged peculiar states known as quantum scars — revealing behaviour that could be used to boost the performance of electronic devices. article_processing_charge: No article_type: letter_note author: - first_name: Dmitry full_name: Abanin, Dmitry last_name: Abanin - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 citation: ama: Abanin D, Serbyn M. Quantum scars make their mark in graphene. Nature. 2024;635(8040):825-826. doi:10.1038/d41586-024-03649-y apa: Abanin, D., & Serbyn, M. (2024). Quantum scars make their mark in graphene. Nature. Springer Nature. https://doi.org/10.1038/d41586-024-03649-y chicago: Abanin, Dmitry, and Maksym Serbyn. “Quantum Scars Make Their Mark in Graphene.” Nature. Springer Nature, 2024. https://doi.org/10.1038/d41586-024-03649-y. ieee: D. Abanin and M. Serbyn, “Quantum scars make their mark in graphene,” Nature, vol. 635, no. 8040. Springer Nature, pp. 825–826, 2024. ista: Abanin D, Serbyn M. 2024. Quantum scars make their mark in graphene. Nature. 635(8040), 825–826. mla: Abanin, Dmitry, and Maksym Serbyn. “Quantum Scars Make Their Mark in Graphene.” Nature, vol. 635, no. 8040, Springer Nature, 2024, pp. 825–26, doi:10.1038/d41586-024-03649-y. short: D. Abanin, M. Serbyn, Nature 635 (2024) 825–826. date_created: 2024-12-03T18:08:16Z date_published: 2024-11-27T00:00:00Z date_updated: 2025-09-08T14:57:35Z day: '27' department: - _id: MaSe doi: 10.1038/d41586-024-03649-y external_id: isi: - '001367935000029' pmid: - '39604614' intvolume: ' 635' isi: 1 issue: '8040' language: - iso: eng month: '11' oa_version: None page: 825-826 pmid: 1 publication: Nature publication_identifier: eissn: - 1476-4687 issn: - 0028-0836 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Quantum scars make their mark in graphene type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 635 year: '2024' ... --- OA_place: repository OA_type: green _id: '18627' abstract: - lang: eng text: In contrast with extended Bloch waves, a single particle can become spatially localized due to the so-called skin effect originating from non-Hermitian pumping. Here we show that in kinetically constrained many-body systems, the skin effect can instead manifest as dynamical amplification within the Fock space, beyond the intuitively expected and previously studied particle localization and clustering. We exemplify this non-Hermitian Fock skin effect in an asymmetric version of the PXP model and show that it gives rise to ergodicity-breaking eigenstates—the non-Hermitian analogs of quantum many-body scars. A distinguishing feature of these non-Hermitian scars is their enhanced robustness against external disorders. We propose an experimental realization of the non-Hermitian scar enhancement in a tilted Bose-Hubbard optical lattice with laser-induced loss. Additionally, we implement digital simulations of such scar enhancement on the IBM quantum processor. Our results show that the Fock skin effect provides a powerful tool for creating robust nonergodic states in generic open quantum systems. acknowledgement: F. Q. and C. H. L. acknowledge support from the QEP2.0 Grant from the Singapore National Research Foundation (Grant No. NRF2021-QEP2-02-P09) and the Singapore MOE Tier-II Grant (Grant No. MOE-T2EP50222-0003). J.-Y. D. and Z. P. acknowledge support by the Leverhulme Trust Research Leadership Award RL-2019-015. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 101034413. This research was supported in part by Grant No. NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP). We acknowledge the use of IBM Quantum services for this work. The views expressed are those of the authors and do not reflect the official policy or position of IBM or the IBM Quantum team. article_number: '216601' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Ruizhe full_name: Shen, Ruizhe last_name: Shen - first_name: Fang full_name: Qin, Fang last_name: Qin - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 - first_name: Zlatko full_name: Papić, Zlatko last_name: Papić - first_name: Ching Hua full_name: Lee, Ching Hua last_name: Lee citation: ama: Shen R, Qin F, Desaules J-YM, Papić Z, Lee CH. Enhanced many-body quantum scars from the non-hermitian fock skin effect. Physical Review Letters. 2024;133(21). doi:10.1103/PhysRevLett.133.216601 apa: Shen, R., Qin, F., Desaules, J.-Y. M., Papić, Z., & Lee, C. H. (2024). Enhanced many-body quantum scars from the non-hermitian fock skin effect. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.133.216601 chicago: Shen, Ruizhe, Fang Qin, Jean-Yves Marc Desaules, Zlatko Papić, and Ching Hua Lee. “Enhanced Many-Body Quantum Scars from the Non-Hermitian Fock Skin Effect.” Physical Review Letters. American Physical Society, 2024. https://doi.org/10.1103/PhysRevLett.133.216601. ieee: R. Shen, F. Qin, J.-Y. M. Desaules, Z. Papić, and C. H. Lee, “Enhanced many-body quantum scars from the non-hermitian fock skin effect,” Physical Review Letters, vol. 133, no. 21. American Physical Society, 2024. ista: Shen R, Qin F, Desaules J-YM, Papić Z, Lee CH. 2024. Enhanced many-body quantum scars from the non-hermitian fock skin effect. Physical Review Letters. 133(21), 216601. mla: Shen, Ruizhe, et al. “Enhanced Many-Body Quantum Scars from the Non-Hermitian Fock Skin Effect.” Physical Review Letters, vol. 133, no. 21, 216601, American Physical Society, 2024, doi:10.1103/PhysRevLett.133.216601. short: R. Shen, F. Qin, J.-Y.M. Desaules, Z. Papić, C.H. Lee, Physical Review Letters 133 (2024). date_created: 2024-12-08T23:01:55Z date_published: 2024-11-22T00:00:00Z date_updated: 2025-09-08T14:54:56Z day: '22' department: - _id: MaSe doi: 10.1103/PhysRevLett.133.216601 ec_funded: 1 external_id: arxiv: - '2403.02395' isi: - '001369697800005' pmid: - '39642519' intvolume: ' 133' isi: 1 issue: '21' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2403.02395 month: '11' oa: 1 oa_version: Preprint pmid: 1 project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: record: - id: '17471' relation: research_data status: public scopus_import: '1' status: public title: Enhanced many-body quantum scars from the non-hermitian fock skin effect type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 133 year: '2024' ...