Ribeiro, Pedro and Lazarides, Achilleas and Haque, Masudul (2020) Many-Body Quantum Dynamics of Initially Trapped Systems due to a Stark Potential: Thermalization versus Bloch Oscillations. Physical Review Letters, 124 (110603). ISSN 1079-7114

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Abstract

We analyze the dynamics of an initially trapped cloud of interacting quantum particles on a lattice under a linear (Stark) potential. We reveal a dichotomy: initially trapped interacting systems possess features typical of both many-body-localized and thermalizing systems. We consider both fermions (t−V model) and bosons (Bose-Hubbard model). For the zero and infinite interaction limits, both systems are integrable: we provide analytic solutions in terms of the moments of the initial cloud shape and clarify how the recurrent dynamics (many-body Bloch oscillations) depends on the initial state. Away from the integrable points, we identify and explain the timescale at which Bloch oscillations decohere.

Item Type:	Article
Additional Information:	Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society. Cite as: Many-Body Quantum Dynamics of Initially Trapped Systems due to a Stark Potential: Thermalization versus Bloch Oscillations Pedro Ribeiro, Achilleas Lazarides, and Masudul Haque Phys. Rev. Lett. 124, 110603 – Published 17 March 2020. DOI:https://doi-org.jproxy.nuim.ie/10.1103/PhysRevLett.124.110603
Keywords:	Many-Body Quantum Dynamics; Initially Trapped Systems; Stark Potential; Thermalization; Bloch Oscillations;
Academic Unit:	Faculty of Science and Engineering > Theoretical Physics
Item ID:	14833
Identification Number:	https://doi.org/10.1103/PhysRevLett.124.110603
Depositing User:	Masud Haque
Date Deposited:	17 Sep 2021 15:39
Journal or Publication Title:	Physical Review Letters
Publisher:	American Physical Society
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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