期刊
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
卷 -, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1742-5468/2016/07/073102
关键词
entanglement in extended quantum systems (theory); conformal field theory
资金
- National Science Foundation [PHY13-16617]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1316617] Funding Source: National Science Foundation
In this letter we study the negativity of one dimensional free fermions. We derive the general form of the ZN symmetric term in moments of the partial transposed (reduced) density matrix, which is an algebraic function of the end points of the system. Such a path integral turns out to be a convenient tool for making estimations for the negativity.
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