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"Light-cone" dynamics after quantum quenches in spin chains.

Abstract:

Signal propagation in the nonequilibrium evolution after quantum quenches has recently attracted much experimental and theoretical interest. A key question arising in this context is what principles, and which of the properties of the quench, determine the characteristic propagation velocity. Here we investigate such issues for a class of quench protocols in one of the central paradigms of interacting many-particle quantum systems, the spin-1/2 Heisenberg XXZ chain. We consider quenches from ...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Läuchli, AM More by this author
Publisher:
American Physical Society
Journal:
Physical review letters
Volume:
113
Issue:
18
Pages:
187203
Publication date:
2014-10-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:045496e8-9be8-432b-99bc-46a53f742a8b
Source identifiers:
489064
Local pid:
pubs:489064
Language:
English

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