On volume subregion complexity in Vaidya spacetime

Roberto Auzzi, Giuseppe Nardelli, Fidel I. Schaposnik Massolo, Gianni Tallarita, Nicolò Zenoni

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We study holographic subregion volume complexity for a line segment in the AdS3 Vaidya geometry. On the field theory side, this gravity background corresponds to a sudden quench which leads to the thermalization of the strongly-coupled dual conformal field theory. We find the time-dependent extremal volume surface by numerically solving a partial differential equation with boundary condition given by the Hubeny-Rangamani- Takayanagi surface, and we use this solution to compute holographic subregion complexity as a function of time. Approximate analytical expressions valid at early and at late times are derived.

Original languageEnglish
Article number98
JournalJournal of High Energy Physics
Issue number11
StatePublished - 1 Nov 2019


  • AdS-CFT Correspondence
  • Black Holes


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