Timelike entanglement entropy Revisited

We present an operator-algebraic definition for timelike entanglement entropy in CFT. This rigorously defined timelike entanglement entropy is real-valued due to the timelike tube theorem. We further demonstrate why the timelike entanglement entropy should be real-valued from both path integral argument and holography perspective.

Publication Details

Journal
ArXiv.org
Published
2025-03-25
Primary Topic
Quantum many-body systems
Type
article
Field-Weighted Citation Impact
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article

Timelike entanglement entropy Revisited

ArXiv.org
Quantum many-body systems
article

Timelike entanglement entropy Revisited

article en

Abstract

We present an operator-algebraic definition for timelike entanglement entropy in CFT. This rigorously defined timelike entanglement entropy is real-valued due to the timelike tube theorem. We further demonstrate why the timelike entanglement entropy should be real-valued from both path integral argument and holography perspective.

ArXiv.org
Reduced inequalities
Openalex Percentile: Top 52%
Quantum many-body systems
Open Access PDFOpenAlex
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Timelike entanglement entropy Revisited · ArXiv.org (2025) | TGRS Research Map | TGRS