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PhysRevLett.123.221601.pdf627.7 kBAdobe PDF見る/開く
タイトル: Entanglement Wedges from the Information Metric in Conformal Field Theories
著者: Suzuki, Yuki
Takayanagi, Tadashi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-7187-3130 (unconfirmed)
Umemoto, Koji
著者名の別形: 髙柳, 匡
梅本, 滉嗣
発行日: 29-Nov-2019
出版者: American Physical Society (APS)
誌名: Physical Review Letters
巻: 123
号: 22
論文番号: 221601
抄録: We present a new method of deriving the geometry of entanglement wedges in holography directly from conformal field theories (CFTs). We analyze an information metric called the Bures metric of reduced density matrices for locally excited states. This measures the distinguishability of states with different points excited. For a subsystem given by an interval, we precisely reproduce the expected entanglement wedge for two-dimensional holographic CFTs from the Bures metric, which turns out to be proportional to the anti–de Sitter metric on a time slice. On the other hand, for free scalar CFTs, we do not find any sharp structures like entanglement wedges. When a subsystem consists of two disconnected intervals, we manage to reproduce the expected entanglement wedge from holographic CFTs with the correct phase transitions, up to a very small error, from a quantity alternative to the Bures metric.
著作権等: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
URI: http://hdl.handle.net/2433/245187
DOI(出版社版): 10.1103/PhysRevLett.123.221601
PubMed ID: 31868416
出現コレクション:学術雑誌掲載論文等

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