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Title:

Distilling momentum-space entanglement in Luttinger liquids at finite temperature

Document type:
Zeitschriftenaufsatz
Author(s):
Dóra, Balázs; Lovas, Izabella; Pollmann, Frank
Abstract:
While much is known about the entanglement characteristics of ground states, the properties of reduced thermal density matrices have received significantly less attention. Here we investigate the total correlations in reduced thermal density matrices for momentum-space bipartitioning in Luttinger liquids using analytical and numerical methods. The low-lying part of its spectrum contains an “entanglement gap”, which persists up to temperatures comparable to the level spacing. With increasing temp...     »
Journal title:
Physical Review B 2017-08
Year:
2017
Journal volume:
96
Journal issue:
8
Fulltext / DOI:
doi:10.1103/physrevb.96.085109
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
07.08.2017
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