Observation of Slow Dynamics near the Many-Body Localization Transition in One-Dimensional Quasiperiodic Systems
| Autor: | Sebastian Scherg, Immanuel Bloch, Pranjal Bordia, Henrik P. Lüschen, Fabien Alet, Ulrich Schneider, Ehud Altman |
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| Přispěvatelé: | Fakultät für Physik, Ludwig-Maximilians-Universität München (LMU), Max-Planck-Institut für Quantenoptik (MPQ), Max-Planck-Gesellschaft, Fermions Fortement Corrélés (LPT) (FFC), Laboratoire de Physique Théorique (LPT), Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Department of Condensed Matter Physics, Weizmann Institute of Science, 76100 Rehovot, Weizmann Institute of Science [Rehovot, Israël], Department of Physics [Berkeley], University of California [Berkeley], University of California-University of California, Cavendish Laboratory, University of Cambridge [UK] (CAM), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Schneider, Ulrich [0000-0003-4345-9498], Apollo - University of Cambridge Repository |
| Rok vydání: | 2016 |
| Předmět: |
Work (thermodynamics)
General Physics and Astronomy FOS: Physical sciences 01 natural sciences 010305 fluids & plasmas Condensed Matter - Strongly Correlated Electrons Transition point quant-ph 0103 physical sciences [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] cond-mat.dis-nn 010306 general physics cond-mat.stat-mech Condensed Matter - Statistical Mechanics ComputingMilieux_MISCELLANEOUS Physics Quantum Physics Range (particle radiation) Condensed matter physics Statistical Mechanics (cond-mat.stat-mech) Strongly Correlated Electrons (cond-mat.str-el) Dynamics (mechanics) Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Disordered Systems and Neural Networks Thermalisation Quantum Gases (cond-mat.quant-gas) Quasiperiodic function Relaxation (physics) cond-mat.str-el Condensed Matter - Quantum Gases Ground state Quantum Physics (quant-ph) cond-mat.quant-gas |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2017, 119 (26), pp.260401. ⟨10.1103/PhysRevLett.119.260401⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.48550/arxiv.1612.07173 |
| Popis: | In the presence of sufficiently strong disorder or quasiperiodic fields, an interacting many-body system can fail to thermalize and become many-body localized. The associated transition is of particular interest, since it occurs not only in the ground state but over an extended range of energy densities. So far, theoretical studies of the transition have focused mainly on the case of true-random disorder. In this work, we experimentally and numerically investigate the regime close to the many-body localization transition in quasiperiodic systems. We find slow relaxation of the density imbalance close to the transition, strikingly similar to the behavior near the transition in true-random systems. This dynamics is found to continuously slow down upon approaching the transition and allows for an estimate of the transition point. We discuss possible microscopic origins of these slow dynamics. |
| Databáze: | OpenAIRE |
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