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Holographic timelike entanglement in AdS3 Vaidya

Gaurav Katoch*, Debajyoti Sarkar†, and Bhim Sen‡

  • *Contact author: gauravitation@gmail.com
  • †Contact author: dsarkar@iiti.ac.in
  • ‡Contact author: bhimsen10496@gmail.com
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Phys. Rev. D 112, 046026 – Published 29 August, 2025

DOI: https://doi.org/10.1103/lmsy-vs86

Abstract

Based on the studies of pseudoentropy in de Sitter, there have been recent proposals for a timelike entanglement in AdS/CFT. In this work, we explore this proposal in the context of a holographic CFT undergoing a global quench. We study various cases in which the timelike intervals are anchored at various boundary times, sometimes straddling the infalling shell. The early and late time behaviors reproduce the known results coming from the pure AdS and the black hole geometry dual to the thermal CFT state respectively. However when the infalling shock straddles the timelike interval, the dynamics drastically differs from how the entanglement entropy evolves.

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Phys. Rev. D 112, 046026– Published 29 August, 2025
  • Received 3 May 2025
  • Accepted 14 August 2025
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