Pseudoentropy in dS/CFT and Timelike Entanglement Entropy

Pseudoentropy in dS/CFT and Timelike Entanglement Entropy

We study holographic entanglement entropy in dS/CFT and introduce timelike entanglement entropy in CFTs. Both of them take complex values in general and are related with each other via an analytical continuation. We argue that they are correctly understood as pseudoentropy. We find that the imaginar...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 2023-01, Vol.130 (3), p.031601-031601, Article 031601
Hauptverfasser: Doi, Kazuki, Harper, Jonathan, Mollabashi, Ali, Takayanagi, Tadashi, Taki, Yusuke
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We study holographic entanglement entropy in dS/CFT and introduce timelike entanglement entropy in CFTs. Both of them take complex values in general and are related with each other via an analytical continuation. We argue that they are correctly understood as pseudoentropy. We find that the imaginary part of pseudoentropy implies an emergence of time in dS/CFT.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.130.031601