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Condensed Matter > Disordered Systems and Neural Networks
Title: Stark many-body localization: Evidence for Hilbert-space shattering
(Submitted on 26 Dec 2020 (v1), last revised 18 Feb 2021 (this version, v2))
Abstract: We study the dynamics of an interacting quantum spin chain under the application of a linearly increasing field. This model exhibits a type of localization known as Stark many-body localization. The dynamics shows a strong dependence on the initial conditions, indicating that the system violates the conventional ("strong") eigenstate thermalization hypothesis at any finite gradient of the field. This is contrary to reports of a numerically observed ergodic phase. Therefore, the localization is crucially distinct from disorder-driven many-body localization, in agreement with recent predictions on the basis of localization via Hilbert-space shattering.
Submission history
From: Elmer Doggen [view email][v1] Sat, 26 Dec 2020 11:51:55 GMT (6035kb,D)
[v2] Thu, 18 Feb 2021 11:52:25 GMT (6224kb,D)
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