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Title:

Slow Growth of Out-of-Time-Order Correlators and Entanglement Entropy in Integrable Disordered Systems

Document type:
Zeitschriftenaufsatz
Author(s):
McGinley, Max; Nunnenkamp, Andreas; Knolle, Johannes
Abstract:
We investigate how information spreads in three paradigmatic one-dimensional models with spatial disorder. The models we consider are unitarily related to a system of free fermions and, thus, are manifestly integrable. We demonstrate that out-of-time-order correlators can spread slowly beyond the single-particle localization length, despite the absence of many-body interactions. This phenomenon is shown to be due to the nonlocal relationship between elementary excitations and the physical degree...     »
Journal title:
Physical Review Letters 2019-01
Year:
2019
Journal volume:
122
Journal issue:
2
Fulltext / DOI:
doi:10.1103/physrevlett.122.020603
Publisher:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Date of publication:
16.01.2019
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