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Title:

Logarithmic Spreading of Out-of-Time-Ordered Correlators without Many-Body Localization

Document type:
Zeitschriftenaufsatz
Author(s):
Smith, Adam; Knolle, Johannes; Moessner, Roderich; Kovrizhin, Dmitry L.
Abstract:
Out-of-time-ordered correlators (OTOCs) describe information scrambling under unitary time evolution, and provide a useful probe of the emergence of quantum chaos. Here we calculate OTOCs for a model of disorder-free localization whose exact solubility allows us to study long-time behavior in large systems. Remarkably, we observe logarithmic spreading of correlations, qualitatively different to both thermalizing and Anderson localized systems. Rather, such behavior is normally taken as a signatu...     »
Journal title:
Physical Review Letters 2019-08
Year:
2019
Journal volume:
123
Journal issue:
8
Fulltext / DOI:
doi:10.1103/physrevlett.123.086602
Publisher:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Date of publication:
23.08.2019
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