[{"article_processing_charge":"No","date_created":"2021-03-14T23:01:33Z","quality_controlled":"1","publication_status":"published","language":[{"iso":"eng"}],"department":[{"_id":"JoFi"}],"volume":103,"month":"02","oa":1,"title":"Frequency-multiplexed hybrid optical entangled source based on the Pockels effect","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"type":"journal_article","doi":"10.1103/PhysRevA.103.023708","main_file_link":[{"url":"https://arxiv.org/abs/2010.05356","open_access":"1"}],"article_number":"023708","scopus_import":"1","publication":"Physical Review A","author":[{"orcid":"0000-0001-6249-5860","first_name":"Alfredo R","last_name":"Rueda Sanchez","id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87","full_name":"Rueda Sanchez, Alfredo R"}],"issue":"2","external_id":{"isi":["000617037900013"],"arxiv":["2010.05356"]},"intvolume":"       103","_id":"9242","status":"public","oa_version":"Preprint","isi":1,"day":"11","arxiv":1,"publisher":"American Physical Society","year":"2021","citation":{"apa":"Rueda Sanchez, A. R. (2021). Frequency-multiplexed hybrid optical entangled source based on the Pockels effect. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.103.023708\">https://doi.org/10.1103/PhysRevA.103.023708</a>","ieee":"A. R. Rueda Sanchez, “Frequency-multiplexed hybrid optical entangled source based on the Pockels effect,” <i>Physical Review A</i>, vol. 103, no. 2. American Physical Society, 2021.","ista":"Rueda Sanchez AR. 2021. Frequency-multiplexed hybrid optical entangled source based on the Pockels effect. Physical Review A. 103(2), 023708.","ama":"Rueda Sanchez AR. Frequency-multiplexed hybrid optical entangled source based on the Pockels effect. <i>Physical Review A</i>. 2021;103(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.103.023708\">10.1103/PhysRevA.103.023708</a>","short":"A.R. Rueda Sanchez, Physical Review A 103 (2021).","mla":"Rueda Sanchez, Alfredo R. “Frequency-Multiplexed Hybrid Optical Entangled Source Based on the Pockels Effect.” <i>Physical Review A</i>, vol. 103, no. 2, 023708, American Physical Society, 2021, doi:<a href=\"https://doi.org/10.1103/PhysRevA.103.023708\">10.1103/PhysRevA.103.023708</a>.","chicago":"Rueda Sanchez, Alfredo R. “Frequency-Multiplexed Hybrid Optical Entangled Source Based on the Pockels Effect.” <i>Physical Review A</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/PhysRevA.103.023708\">https://doi.org/10.1103/PhysRevA.103.023708</a>."},"acknowledgement":"I thank Prof. Shabir Barzanjeh and Dr. Ulrich Vogl for the fruitful discussions.\r\n","date_published":"2021-02-11T00:00:00Z","article_type":"original","fulldoi":"https://doi.org/10.1103/PhysRevA.103.023708","date_updated":"2023-08-07T14:11:18Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","abstract":[{"text":"In the recent years important experimental advances in resonant electro-optic modulators as high-efficiency sources for coherent frequency combs and as devices for quantum information transfer have been realized, where strong optical and microwave mode coupling were achieved. These features suggest electro-optic-based devices as candidates for entangled optical frequency comb sources. In the present work, I study the generation of entangled optical frequency combs in millimeter-sized resonant electro-optic modulators. These devices profit from the experimentally proven advantages such as nearly constant optical free spectral ranges over several gigahertz, and high optical and microwave quality factors. The generation of frequency multiplexed quantum channels with spectral bandwidth in the MHz range for conservative parameter values paves the way towards novel uses in long-distance hybrid quantum networks, quantum key distribution, enhanced optical metrology, and quantum computing.","lang":"eng"}]},{"date_published":"2021-06-01T00:00:00Z","fulldoi":"https://doi.org/10.1103/PhysRevA.103.L061303","article_type":"letter_note","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"lang":"eng","text":"Sound propagation is a macroscopic manifestation of the interplay between the equilibrium thermodynamics and the dynamical transport properties of fluids. Here, for a two-dimensional system of ultracold fermions, we calculate the first and second sound velocities across the whole BCS-BEC crossover, and we analyze the system response to an external perturbation. In the low-temperature regime we reproduce the recent measurements [Phys. Rev. Lett. 124, 240403 (2020)] of the first sound velocity, which, due to the decoupling of density and entropy fluctuations, is the sole mode excited by a density probe. Conversely, a heat perturbation excites only the second sound, which, being sensitive to the superfluid depletion, vanishes in the deep BCS regime and jumps discontinuously to zero at the Berezinskii-Kosterlitz-Thouless superfluid transition. A mixing between the modes occurs only in the finite-temperature BEC regime, where our theory converges to the purely bosonic results."}],"date_updated":"2025-07-10T12:01:58Z","issue":"6","external_id":{"isi":["000662296700014"],"arxiv":["2009.06491"]},"intvolume":"       103","isi":1,"arxiv":1,"day":"01","publisher":"American Physical Society","year":"2021","citation":{"chicago":"Tononi, A., Alberto Cappellaro, Giacomo Bighin, and L. Salasnich. “Propagation of First and Second Sound in a Two-Dimensional Fermi Superfluid.” <i>Physical Review A</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/PhysRevA.103.L061303\">https://doi.org/10.1103/PhysRevA.103.L061303</a>.","short":"A. Tononi, A. Cappellaro, G. Bighin, L. Salasnich, Physical Review A 103 (2021).","mla":"Tononi, A., et al. “Propagation of First and Second Sound in a Two-Dimensional Fermi Superfluid.” <i>Physical Review A</i>, vol. 103, no. 6, L061303, American Physical Society, 2021, doi:<a href=\"https://doi.org/10.1103/PhysRevA.103.L061303\">10.1103/PhysRevA.103.L061303</a>.","ama":"Tononi A, Cappellaro A, Bighin G, Salasnich L. Propagation of first and second sound in a two-dimensional Fermi superfluid. <i>Physical Review A</i>. 2021;103(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.103.L061303\">10.1103/PhysRevA.103.L061303</a>","ista":"Tononi A, Cappellaro A, Bighin G, Salasnich L. 2021. Propagation of first and second sound in a two-dimensional Fermi superfluid. Physical Review A. 103(6), L061303.","ieee":"A. Tononi, A. Cappellaro, G. Bighin, and L. Salasnich, “Propagation of first and second sound in a two-dimensional Fermi superfluid,” <i>Physical Review A</i>, vol. 103, no. 6. American Physical Society, 2021.","apa":"Tononi, A., Cappellaro, A., Bighin, G., &#38; Salasnich, L. (2021). Propagation of first and second sound in a two-dimensional Fermi superfluid. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.103.L061303\">https://doi.org/10.1103/PhysRevA.103.L061303</a>"},"acknowledgement":"G.B. acknowledges support from the Austrian Science Fund (FWF), under Project No. M2641-N27. This work was\r\npartially supported by the University of Padua, BIRD project “Superfluid properties of Fermi gases in optical potentials.”\r\nThe authors thank Miki Ota, Tomoki Ozawa, Sandro Stringari, Tilman Enss, Hauke Biss, Henning Moritz, and Nicolò Defenu for fruitful discussions. The authors thank Henning Moritz and Markus Bohlen for providing their experimental\r\ndata.","_id":"9606","status":"public","oa_version":"Preprint","article_number":"L061303","title":"Propagation of first and second sound in a two-dimensional Fermi superfluid","oa":1,"publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"type":"journal_article","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2009.06491"}],"doi":"10.1103/PhysRevA.103.L061303","publication":"Physical Review A","author":[{"last_name":"Tononi","full_name":"Tononi, A.","first_name":"A."},{"orcid":"0000-0001-6110-2359","first_name":"Alberto","full_name":"Cappellaro, Alberto","id":"9d13b3cb-30a2-11eb-80dc-f772505e8660","last_name":"Cappellaro"},{"orcid":"0000-0001-8823-9777","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","full_name":"Bighin, Giacomo"},{"first_name":"L.","full_name":"Salasnich, L.","last_name":"Salasnich"}],"scopus_import":"1","quality_controlled":"1","article_processing_charge":"No","date_created":"2021-06-27T22:01:49Z","month":"06","publication_status":"published","department":[{"_id":"MiLe"}],"volume":103,"language":[{"iso":"eng"}]},{"date_created":"2021-12-14T20:46:07Z","article_processing_charge":"No","project":[{"grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","call_identifier":"H2020"}],"related_material":{"record":[{"relation":"dissertation_contains","id":"17208","status":"public"}]},"quality_controlled":"1","department":[{"_id":"MaSe"}],"volume":104,"language":[{"iso":"eng"}],"publication_status":"published","month":"12","publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"oa":1,"title":"Duality approach to quantum annealing of the 3-variable exclusive-or satisfiability problem (3-XORSAT)","main_file_link":[{"url":"https://arxiv.org/abs/2106.06344","open_access":"1"}],"doi":"10.1103/physreva.104.062423","type":"journal_article","article_number":"062423","scopus_import":"1","publication":"Physical Review A","author":[{"last_name":"Medina Ramos","id":"CE680B90-D85A-11E9-B684-C920E6697425","full_name":"Medina Ramos, Raimel A","first_name":"Raimel A","orcid":"0000-0002-5383-2869"},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym"}],"external_id":{"isi":["000753659200004"],"arxiv":["2106.06344"]},"issue":"6","intvolume":"       104","status":"public","_id":"10545","oa_version":"Preprint","arxiv":1,"day":"14","isi":1,"citation":{"mla":"Medina Ramos, Raimel A., and Maksym Serbyn. “Duality Approach to Quantum Annealing of the 3-Variable Exclusive-or Satisfiability Problem (3-XORSAT).” <i>Physical Review A</i>, vol. 104, no. 6, 062423, American Physical Society, 2021, doi:<a href=\"https://doi.org/10.1103/physreva.104.062423\">10.1103/physreva.104.062423</a>.","short":"R.A. Medina Ramos, M. Serbyn, Physical Review A 104 (2021).","chicago":"Medina Ramos, Raimel A, and Maksym Serbyn. “Duality Approach to Quantum Annealing of the 3-Variable Exclusive-or Satisfiability Problem (3-XORSAT).” <i>Physical Review A</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/physreva.104.062423\">https://doi.org/10.1103/physreva.104.062423</a>.","ieee":"R. A. Medina Ramos and M. Serbyn, “Duality approach to quantum annealing of the 3-variable exclusive-or satisfiability problem (3-XORSAT),” <i>Physical Review A</i>, vol. 104, no. 6. American Physical Society, 2021.","apa":"Medina Ramos, R. A., &#38; Serbyn, M. (2021). Duality approach to quantum annealing of the 3-variable exclusive-or satisfiability problem (3-XORSAT). <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physreva.104.062423\">https://doi.org/10.1103/physreva.104.062423</a>","ista":"Medina Ramos RA, Serbyn M. 2021. Duality approach to quantum annealing of the 3-variable exclusive-or satisfiability problem (3-XORSAT). Physical Review A. 104(6), 062423.","ama":"Medina Ramos RA, Serbyn M. Duality approach to quantum annealing of the 3-variable exclusive-or satisfiability problem (3-XORSAT). <i>Physical Review A</i>. 2021;104(6). doi:<a href=\"https://doi.org/10.1103/physreva.104.062423\">10.1103/physreva.104.062423</a>"},"year":"2021","acknowledgement":"We would like to thank S. De Nicola, A. Michaidilis, T. Gulden, Y. Nez-Fernndez, P. Brighi, and S. Sack for fruitful discussions and valuable feedback on the manuscript. M.S. acknowledges useful discussions with E. Altman, L. Cugliandolo, and C. Laumann. We acknowledge support from the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme Grant Agreement No. 850899.","publisher":"American Physical Society","date_published":"2021-12-14T00:00:00Z","fulldoi":"https://doi.org/10.1103/physreva.104.062423","article_type":"original","date_updated":"2026-10-02T11:36:06Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","ec_funded":1,"abstract":[{"lang":"eng","text":"Classical models with complex energy landscapes represent a perspective avenue for the near-term application of quantum simulators. Until now, many theoretical works studied the performance of quantum algorithms for models with a unique ground state. However, when the classical problem is in a so-called clustering phase, the ground state manifold is highly degenerate. As an example, we consider a 3-XORSAT model defined on simple hypergraphs. The degeneracy of classical ground state manifold translates into the emergence of an extensive number of Z2 symmetries, which remain intact even in the presence of a quantum transverse magnetic field. We establish a general duality approach that restricts the quantum problem to a given sector of conserved Z2 charges and use it to study how the outcome of the quantum adiabatic algorithm depends on the hypergraph geometry. We show that the tree hypergraph which corresponds to a classically solvable instance of the 3-XORSAT problem features a constant gap, whereas the closed hypergraph encounters a second-order phase transition with a gap vanishing as a power-law in the problem size. The duality developed in this work provides a practical tool for studies of quantum models with classically degenerate energy manifold and reveals potential connections between glasses and gauge theories."}]},{"date_published":"2020-12-14T00:00:00Z","has_accepted_license":"1","ddc":["530"],"tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"article_type":"original","fulldoi":"https://doi.org/10.1103/physreva.102.063316","date_updated":"2024-10-08T09:51:57Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"lang":"eng","text":"Realizing strongly correlated topological phases of ultracold gases is a central goal for ongoing experiments. While fractional quantum Hall states could soon be implemented in small atomic ensembles, detecting their signatures in few-particle settings remains a fundamental challenge. In this work, we numerically analyze the center-of-mass Hall drift of a small ensemble of hardcore bosons, initially prepared in the ground state of the Harper-Hofstadter-Hubbard model in a box potential. By monitoring the Hall drift upon release, for a wide range of magnetic flux values, we identify an emergent Hall plateau compatible with a fractional Chern insulator state: The extracted Hall conductivity approaches a fractional value determined by the many-body Chern number, while the width of the plateau agrees with the spectral and topological properties of the prepared ground state. Besides, a direct application of Streda's formula indicates that such Hall plateaus can also be directly obtained from static density-profile measurements. Our calculations suggest that fractional Chern insulators can be detected in cold-atom experiments, using available detection methods."}],"issue":"6","external_id":{"arxiv":["2005.09689"]},"intvolume":"       102","status":"public","_id":"18194","oa_version":"Published Version","day":"14","arxiv":1,"publisher":"American Physical Society","citation":{"apa":"Repellin, C., Leonard, J., &#38; Goldman, N. (2020). Fractional Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physreva.102.063316\">https://doi.org/10.1103/physreva.102.063316</a>","ieee":"C. Repellin, J. Leonard, and N. Goldman, “Fractional Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles,” <i>Physical Review A</i>, vol. 102, no. 6. American Physical Society, 2020.","ama":"Repellin C, Leonard J, Goldman N. Fractional Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles. <i>Physical Review A</i>. 2020;102(6). doi:<a href=\"https://doi.org/10.1103/physreva.102.063316\">10.1103/physreva.102.063316</a>","ista":"Repellin C, Leonard J, Goldman N. 2020. Fractional Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles. Physical Review A. 102(6), 063316.","short":"C. Repellin, J. Leonard, N. Goldman, Physical Review A 102 (2020).","mla":"Repellin, C., et al. “Fractional Chern Insulators of Few Bosons in a Box: Hall Plateaus from Center-of-Mass Drifts and Density Profiles.” <i>Physical Review A</i>, vol. 102, no. 6, 063316, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/physreva.102.063316\">10.1103/physreva.102.063316</a>.","chicago":"Repellin, C., Julian Leonard, and N. Goldman. “Fractional Chern Insulators of Few Bosons in a Box: Hall Plateaus from Center-of-Mass Drifts and Density Profiles.” <i>Physical Review A</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/physreva.102.063316\">https://doi.org/10.1103/physreva.102.063316</a>."},"year":"2020","oa":1,"title":"Fractional Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"type":"journal_article","doi":"10.1103/physreva.102.063316","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1103/PhysRevA.102.063316"}],"article_number":"063316","extern":"1","scopus_import":"1","publication":"Physical Review A","author":[{"full_name":"Repellin, C.","last_name":"Repellin","first_name":"C."},{"id":"b75b3f45-7995-11ef-9bfd-9a9cd02c3577","last_name":"Leonard","full_name":"Leonard, Julian","first_name":"Julian"},{"last_name":"Goldman","full_name":"Goldman, N.","first_name":"N."}],"article_processing_charge":"Yes (in subscription journal)","date_created":"2024-10-07T11:48:07Z","quality_controlled":"1","publication_status":"published","volume":102,"language":[{"iso":"eng"}],"month":"12"},{"quality_controlled":"1","supplementarymaterial":"no","date_created":"2020-08-30T22:01:10Z","article_processing_charge":"No","month":"07","department":[{"_id":"OnHo"}],"language":[{"iso":"eng"}],"volume":102,"publication_status":"published","article_number":"012224","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"oa":1,"title":"Retrieval of cavity-generated atomic spin squeezing after free-space release","doi":"10.1103/PhysRevA.102.012224","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1912.08334"}],"type":"journal_article","publication":"Physical Review A","author":[{"full_name":"Wu, Yunfan","last_name":"Wu","first_name":"Yunfan"},{"last_name":"Krishnakumar","full_name":"Krishnakumar, Rajiv","first_name":"Rajiv"},{"last_name":"Martínez-Rincón","full_name":"Martínez-Rincón, Julián","first_name":"Julián"},{"first_name":"Benjamin K.","last_name":"Malia","full_name":"Malia, Benjamin K."},{"full_name":"Hosten, Onur","id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","last_name":"Hosten","orcid":"0000-0002-2031-204X","first_name":"Onur"},{"first_name":"Mark A.","full_name":"Kasevich, Mark A.","last_name":"Kasevich"}],"scopus_import":"1","external_id":{"isi":["000555104200011"],"arxiv":["1912.08334"]},"issue":"1","intvolume":"       102","das_tickbox":"0","arxiv":1,"day":"30","isi":1,"citation":{"chicago":"Wu, Yunfan, Rajiv Krishnakumar, Julián Martínez-Rincón, Benjamin K. Malia, Onur Hosten, and Mark A. Kasevich. “Retrieval of Cavity-Generated Atomic Spin Squeezing after Free-Space Release.” <i>Physical Review A</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevA.102.012224\">https://doi.org/10.1103/PhysRevA.102.012224</a>.","short":"Y. Wu, R. Krishnakumar, J. Martínez-Rincón, B.K. Malia, O. Hosten, M.A. Kasevich, Physical Review A 102 (2020).","mla":"Wu, Yunfan, et al. “Retrieval of Cavity-Generated Atomic Spin Squeezing after Free-Space Release.” <i>Physical Review A</i>, vol. 102, no. 1, 012224, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevA.102.012224\">10.1103/PhysRevA.102.012224</a>.","ama":"Wu Y, Krishnakumar R, Martínez-Rincón J, Malia BK, Hosten O, Kasevich MA. Retrieval of cavity-generated atomic spin squeezing after free-space release. <i>Physical Review A</i>. 2020;102(1). doi:<a href=\"https://doi.org/10.1103/PhysRevA.102.012224\">10.1103/PhysRevA.102.012224</a>","ista":"Wu Y, Krishnakumar R, Martínez-Rincón J, Malia BK, Hosten O, Kasevich MA. 2020. Retrieval of cavity-generated atomic spin squeezing after free-space release. Physical Review A. 102(1), 012224.","apa":"Wu, Y., Krishnakumar, R., Martínez-Rincón, J., Malia, B. K., Hosten, O., &#38; Kasevich, M. A. (2020). Retrieval of cavity-generated atomic spin squeezing after free-space release. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.102.012224\">https://doi.org/10.1103/PhysRevA.102.012224</a>","ieee":"Y. Wu, R. Krishnakumar, J. Martínez-Rincón, B. K. Malia, O. Hosten, and M. A. Kasevich, “Retrieval of cavity-generated atomic spin squeezing after free-space release,” <i>Physical Review A</i>, vol. 102, no. 1. American Physical Society, 2020."},"year":"2020","acknowledgement":"We thank N. Engelsen for comments on the manuscript. This work was supported by the Office of Naval Research, Vannevar Bush Faculty Fellowship, Department of Energy, and Defense Threat Reduction Agency. R.K. was partly supported by the AQT/INQNET program at Caltech.","publisher":"American Physical Society","_id":"8319","status":"public","researchdata_availability":"no","oa_version":"Preprint","date_published":"2020-07-30T00:00:00Z","article_type":"original","fulldoi":"https://doi.org/10.1103/PhysRevA.102.012224","user_id":"68b8ca59-c5b3-11ee-8790-cd641c68093d","abstract":[{"text":"We demonstrate that releasing atoms into free space from an optical lattice does not deteriorate cavity-generated spin squeezing for metrological purposes. In this work, an ensemble of 500000 spin-squeezed atoms in a high-finesse optical cavity with near-uniform atom-cavity coupling is prepared, released into free space, recaptured in the cavity, and probed. Up to ∼10 dB of metrologically relevant squeezing is retrieved for 700μs free-fall times, and decaying levels of squeezing are realized for up to 3 ms free-fall times. The degradation of squeezing results from loss of atom-cavity coupling homogeneity between the initial squeezed state generation and final collective state readout. A theoretical model is developed to quantify this degradation and this model is experimentally validated.","lang":"eng"}],"date_updated":"2026-07-08T08:59:02Z"},{"article_number":"063627","oa":1,"title":"Coupled superfluidity of binary Bose mixtures in two dimensions","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"type":"journal_article","doi":"10.1103/PhysRevA.99.063627","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1903.06759"}],"publication":"Physical Review A","author":[{"id":"D7C012AE-D7ED-11E9-95E8-1EC5E5697425","last_name":"Karle","full_name":"Karle, Volker","orcid":"0000-0002-6963-0129","first_name":"Volker"},{"last_name":"Defenu","full_name":"Defenu, Nicolò","first_name":"Nicolò"},{"last_name":"Enss","full_name":"Enss, Tilman","first_name":"Tilman"}],"scopus_import":"1","quality_controlled":"1","article_processing_charge":"No","date_created":"2019-07-14T21:59:17Z","month":"06","publication_status":"published","language":[{"iso":"eng"}],"volume":99,"department":[{"_id":"MiLe"}],"date_published":"2019-06-28T00:00:00Z","fulldoi":"https://doi.org/10.1103/PhysRevA.99.063627","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"We consider a two-component Bose gas in two dimensions at a low temperature with short-range repulsive interaction. In the coexistence phase where both components are superfluid, interspecies interactions induce a nondissipative drag between the two superfluid flows (Andreev-Bashkin effect). We show that this behavior leads to a modification of the usual Berezinskii-Kosterlitz-Thouless (BKT) transition in two dimensions. We extend the renormalization of the superfluid densities at finite temperature using the renormalization-group approach and find that the vortices of one component have a large influence on the superfluid properties of the other, mediated  by  the  nondissipative  drag.  The  extended  BKT  flow  equations  indicate  that  the  occurrence  of  the vortex unbinding transition in one of the components can induce the breakdown of superfluidity also in the other, leading to a locking phenomenon for the critical temperatures of the two gases.","lang":"eng"}],"date_updated":"2025-07-10T11:53:40Z","issue":"6","external_id":{"arxiv":["1903.06759"],"isi":["000473133600007"]},"intvolume":"        99","isi":1,"arxiv":1,"day":"28","publisher":"American Physical Society","citation":{"ieee":"V. Karle, N. Defenu, and T. Enss, “Coupled superfluidity of binary Bose mixtures in two dimensions,” <i>Physical Review A</i>, vol. 99, no. 6. American Physical Society, 2019.","apa":"Karle, V., Defenu, N., &#38; Enss, T. (2019). Coupled superfluidity of binary Bose mixtures in two dimensions. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">https://doi.org/10.1103/PhysRevA.99.063627</a>","ista":"Karle V, Defenu N, Enss T. 2019. Coupled superfluidity of binary Bose mixtures in two dimensions. Physical Review A. 99(6), 063627.","ama":"Karle V, Defenu N, Enss T. Coupled superfluidity of binary Bose mixtures in two dimensions. <i>Physical Review A</i>. 2019;99(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">10.1103/PhysRevA.99.063627</a>","short":"V. Karle, N. Defenu, T. Enss, Physical Review A 99 (2019).","mla":"Karle, Volker, et al. “Coupled Superfluidity of Binary Bose Mixtures in Two Dimensions.” <i>Physical Review A</i>, vol. 99, no. 6, 063627, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">10.1103/PhysRevA.99.063627</a>.","chicago":"Karle, Volker, Nicolò Defenu, and Tilman Enss. “Coupled Superfluidity of Binary Bose Mixtures in Two Dimensions.” <i>Physical Review A</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">https://doi.org/10.1103/PhysRevA.99.063627</a>."},"year":"2019","_id":"6632","status":"public","oa_version":"Preprint"},{"extern":"1","article_number":"061801","type":"journal_article","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.1710.03719"}],"doi":"10.1103/physreva.96.061801","oa":1,"title":"Spectral and spatial shaping of Smith-Purcell radiation","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"author":[{"last_name":"Remez","full_name":"Remez, Roei","first_name":"Roei"},{"first_name":"Niv","last_name":"Shapira","full_name":"Shapira, Niv"},{"full_name":"Roques-Carmes, Charles","last_name":"Roques-Carmes","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","first_name":"Charles"},{"first_name":"Romain","full_name":"Tirole, Romain","last_name":"Tirole"},{"first_name":"Yi","full_name":"Yang, Yi","last_name":"Yang"},{"first_name":"Yossi","full_name":"Lereah, Yossi","last_name":"Lereah"},{"last_name":"Soljačić","full_name":"Soljačić, Marin","first_name":"Marin"},{"first_name":"Ido","full_name":"Kaminer, Ido","last_name":"Kaminer"},{"first_name":"Ady","full_name":"Arie, Ady","last_name":"Arie"}],"publication":"Physical Review A","scopus_import":"1","quality_controlled":"1","article_processing_charge":"No","date_created":"2026-03-30T12:22:47Z","month":"12","publication_status":"published","language":[{"iso":"eng"}],"volume":96,"fulldoi":"https://doi.org/10.1103/physreva.96.061801","article_type":"original","OA_type":"green","date_published":"2017-12-06T00:00:00Z","ddc":["530"],"abstract":[{"lang":"eng","text":"The Smith-Purcell effect, observed when an electron beam passes in the vicinity of a periodic structure, is a promising platform for the generation of electromagnetic radiation in previously unreachable spectral ranges. However, most of the studies of this radiation were performed on simple periodic gratings, whose radiation spectrum exhibits a single peak and its higher harmonics predicted by a well-established dispersion relation. Here, we propose a method to shape the spatial and spectral far-field distribution of the radiation using complex periodic and aperiodic gratings. We show, theoretically and experimentally, that engineering multiple peak spectra with controlled widths located at desired wavelengths is achievable using Smith-Purcell radiation. Our method opens the way to free-electron-driven sources with tailored angular and spectral responses, and gives rise to focusing functionality for spectral ranges where lenses are unavailable or inefficient."}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-04-15T11:46:22Z","intvolume":"        96","issue":"6","external_id":{"arxiv":["1710.03719"]},"publisher":"American Physical Society","year":"2017","citation":{"ieee":"R. Remez <i>et al.</i>, “Spectral and spatial shaping of Smith-Purcell radiation,” <i>Physical Review A</i>, vol. 96, no. 6. American Physical Society, 2017.","apa":"Remez, R., Shapira, N., Roques-Carmes, C., Tirole, R., Yang, Y., Lereah, Y., … Arie, A. (2017). Spectral and spatial shaping of Smith-Purcell radiation. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physreva.96.061801\">https://doi.org/10.1103/physreva.96.061801</a>","ama":"Remez R, Shapira N, Roques-Carmes C, et al. Spectral and spatial shaping of Smith-Purcell radiation. <i>Physical Review A</i>. 2017;96(6). doi:<a href=\"https://doi.org/10.1103/physreva.96.061801\">10.1103/physreva.96.061801</a>","ista":"Remez R, Shapira N, Roques-Carmes C, Tirole R, Yang Y, Lereah Y, Soljačić M, Kaminer I, Arie A. 2017. Spectral and spatial shaping of Smith-Purcell radiation. Physical Review A. 96(6), 061801.","short":"R. Remez, N. Shapira, C. Roques-Carmes, R. Tirole, Y. Yang, Y. Lereah, M. Soljačić, I. Kaminer, A. Arie, Physical Review A 96 (2017).","mla":"Remez, Roei, et al. “Spectral and Spatial Shaping of Smith-Purcell Radiation.” <i>Physical Review A</i>, vol. 96, no. 6, 061801, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/physreva.96.061801\">10.1103/physreva.96.061801</a>.","chicago":"Remez, Roei, Niv Shapira, Charles Roques-Carmes, Romain Tirole, Yi Yang, Yossi Lereah, Marin Soljačić, Ido Kaminer, and Ady Arie. “Spectral and Spatial Shaping of Smith-Purcell Radiation.” <i>Physical Review A</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/physreva.96.061801\">https://doi.org/10.1103/physreva.96.061801</a>."},"day":"06","arxiv":1,"oa_version":"Preprint","status":"public","_id":"21558"},{"date_published":"2017-01-10T00:00:00Z","article_type":"original","fulldoi":"https://doi.org/10.1103/physreva.95.013404","date_updated":"2023-08-22T08:38:17Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"Attosecond delays between photoelectron wave packets emitted from different electronic shells are now well established. Is there any delay between electrons originating from the same electronic shell but leaving the cation in different fine-structure states? This question is relevant for all attosecond photoemission studies involving heavy elements, be it atoms, molecules or solids. We answer this fundamental question by measuring energy-dependent delays between photoelectron wave packets associated with the 2P3/2 and 2P1/2 components of the electronic groundstates of Xe+ and Kr+. We observe delays reaching up to 33±6 as in the case of Xe. Our results are compared with two state-of-the-art theories. Whereas both theories quantitatively agree with the results obtained for Kr, neither of them fully reproduces the experimental results in Xe. Performing delay measurements very close to the ionization thresholds, we compare the agreement of several analytical formulas for the continuum-continuum delays with experimental data. Our results show an important influence of spin-orbit coupling on attosecond photoionization delays, highlight the requirement for additional theory development, and offer a precision benchmark for such work.","lang":"eng"}],"issue":"1","intvolume":"        95","status":"public","_id":"14009","oa_version":"None","day":"10","year":"2017","citation":{"chicago":"Jordan, I., M. Huppert, S. Pabst, A. S. Kheifets, Denitsa Rangelova Baykusheva, and H. J. Wörner. “Spin-Orbit Delays in Photoemission.” <i>Physical Review A</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/physreva.95.013404\">https://doi.org/10.1103/physreva.95.013404</a>.","short":"I. Jordan, M. Huppert, S. Pabst, A.S. Kheifets, D.R. Baykusheva, H.J. Wörner, Physical Review A 95 (2017).","mla":"Jordan, I., et al. “Spin-Orbit Delays in Photoemission.” <i>Physical Review A</i>, vol. 95, no. 1, 013404, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/physreva.95.013404\">10.1103/physreva.95.013404</a>.","ama":"Jordan I, Huppert M, Pabst S, Kheifets AS, Baykusheva DR, Wörner HJ. Spin-orbit delays in photoemission. <i>Physical Review A</i>. 2017;95(1). doi:<a href=\"https://doi.org/10.1103/physreva.95.013404\">10.1103/physreva.95.013404</a>","ista":"Jordan I, Huppert M, Pabst S, Kheifets AS, Baykusheva DR, Wörner HJ. 2017. Spin-orbit delays in photoemission. Physical Review A. 95(1), 013404.","ieee":"I. Jordan, M. Huppert, S. Pabst, A. S. Kheifets, D. R. Baykusheva, and H. J. Wörner, “Spin-orbit delays in photoemission,” <i>Physical Review A</i>, vol. 95, no. 1. American Physical Society, 2017.","apa":"Jordan, I., Huppert, M., Pabst, S., Kheifets, A. S., Baykusheva, D. R., &#38; Wörner, H. J. (2017). Spin-orbit delays in photoemission. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physreva.95.013404\">https://doi.org/10.1103/physreva.95.013404</a>"},"publisher":"American Physical Society","publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"title":"Spin-orbit delays in photoemission","doi":"10.1103/physreva.95.013404","type":"journal_article","article_number":"013404","extern":"1","scopus_import":"1","publication":"Physical Review A","author":[{"first_name":"I.","full_name":"Jordan, I.","last_name":"Jordan"},{"first_name":"M.","full_name":"Huppert, M.","last_name":"Huppert"},{"last_name":"Pabst","full_name":"Pabst, S.","first_name":"S."},{"first_name":"A. S.","full_name":"Kheifets, A. S.","last_name":"Kheifets"},{"full_name":"Baykusheva, Denitsa Rangelova","id":"71b4d059-2a03-11ee-914d-dfa3beed6530","last_name":"Baykusheva","first_name":"Denitsa Rangelova"},{"full_name":"Wörner, H. J.","last_name":"Wörner","first_name":"H. J."}],"date_created":"2023-08-10T06:36:58Z","article_processing_charge":"No","quality_controlled":"1","volume":95,"language":[{"iso":"eng"}],"publication_status":"published","month":"01"},{"extern":"1","type":"journal_article","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/cond-mat/0403240"}],"doi":"10.1103/PhysRevA.70.023612","oa":1,"title":"Bose-Einstein quantum phase transition in an optical lattice model","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"author":[{"full_name":"Aizenman, Michael","last_name":"Aizenman","first_name":"Michael"},{"last_name":"Lieb","full_name":"Lieb, Élliott","first_name":"Élliott"},{"full_name":"Seiringer, Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","last_name":"Seiringer","first_name":"Robert","orcid":"0000-0002-6781-0521"},{"first_name":"Jan","full_name":"Solovej, Jan","last_name":"Solovej"},{"first_name":"Jakob","full_name":"Yngvason, Jakob","last_name":"Yngvason"}],"publication":"Physical Review A - Atomic, Molecular, and Optical Physics","article_processing_charge":"No","date_created":"2018-12-11T11:57:12Z","month":"08","publication_status":"published","volume":70,"language":[{"iso":"eng"}],"page":"023612 - 1-0236121-2","OA_place":"repository","fulldoi":"https://doi.org/10.1103/PhysRevA.70.023612","article_type":"original","OA_type":"green","date_published":"2004-08-01T00:00:00Z","abstract":[{"text":"An optical lattice model developed that is similar to the Bose-Hubbard model to describe the transition between Bose-Einstein condensation (BEC) and a Mott insulator state was analyzed. It was found that the system was a hard core lattice gas at half of the maximum density and the optical lattice was modeled by a periodic potential of strength λ. It was also observed that the interparticle interaction was essential for this transition that occurred even in the ground state. The results show that all the essential features could be proved rigorously such as the existence of BEC for small λ and its suppression for a large λ.","lang":"eng"}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_updated":"2026-09-30T13:13:48Z","publist_id":"4567","intvolume":"        70","issue":"2","external_id":{"arxiv":["0403240"]},"publisher":"American Physical Society","year":"2004","citation":{"chicago":"Aizenman, Michael, Élliott Lieb, Robert Seiringer, Jan Solovej, and Jakob Yngvason. “Bose-Einstein Quantum Phase Transition in an Optical Lattice Model.” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society, 2004. <a href=\"https://doi.org/10.1103/PhysRevA.70.023612\">https://doi.org/10.1103/PhysRevA.70.023612</a>.","short":"M. Aizenman, É. Lieb, R. Seiringer, J. Solovej, J. Yngvason, Physical Review A - Atomic, Molecular, and Optical Physics 70 (2004) 023612-1-0236121-2.","mla":"Aizenman, Michael, et al. “Bose-Einstein Quantum Phase Transition in an Optical Lattice Model.” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 70, no. 2, American Physical Society, 2004, pp. 023612-1-0236121-2, doi:<a href=\"https://doi.org/10.1103/PhysRevA.70.023612\">10.1103/PhysRevA.70.023612</a>.","ista":"Aizenman M, Lieb É, Seiringer R, Solovej J, Yngvason J. 2004. Bose-Einstein quantum phase transition in an optical lattice model. Physical Review A - Atomic, Molecular, and Optical Physics. 70(2), 023612-1-0236121-2.","ama":"Aizenman M, Lieb É, Seiringer R, Solovej J, Yngvason J. Bose-Einstein quantum phase transition in an optical lattice model. <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. 2004;70(2):023612-1-0236121-2. doi:<a href=\"https://doi.org/10.1103/PhysRevA.70.023612\">10.1103/PhysRevA.70.023612</a>","ieee":"M. Aizenman, É. Lieb, R. Seiringer, J. Solovej, and J. Yngvason, “Bose-Einstein quantum phase transition in an optical lattice model,” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 70, no. 2. American Physical Society, pp. 023612-1-0236121-2, 2004.","apa":"Aizenman, M., Lieb, É., Seiringer, R., Solovej, J., &#38; Yngvason, J. (2004). Bose-Einstein quantum phase transition in an optical lattice model. <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.70.023612\">https://doi.org/10.1103/PhysRevA.70.023612</a>"},"arxiv":1,"day":"01","oa_version":"None","_id":"2360","status":"public"}]