ICTS:29321

Video URL

Pseudo entropy and de Sitter Holography (CL3)

Pseudo entropy and de Sitter Holography (CL3)

(2024). Pseudo entropy and de Sitter Holography (CL3). SciVideos. https://youtube.com/live/Ttvlt99EnsQ

Pseudo entropy and de Sitter Holography (CL3). SciVideos, Aug. 15, 2024, https://youtube.com/live/Ttvlt99EnsQ 

          @misc{ scivideos_ICTS:29321,
            doi = {},
            url = {https://youtube.com/live/Ttvlt99EnsQ},
            author = {},
            keywords = {},
            language = {en},
            title = {Pseudo entropy and de Sitter Holography (CL3)},
            publisher = {},
            year = {2024},
            month = {aug},
            note = {ICTS:29321 see, \url{https://scivideos.org/icts-tifr/29321}}
          }
Tadashi Takayanagi
Talk numberICTS:29321
Source RepositoryICTS-TIFR
Source EventQuantum Information, Quantum Field Theory and Gravity
Collection

Abstract

Pseudo entropy is an interesting quantity with a simple gravity dual, which generalizes entanglement entropy such that it depends on both an initial and a final state. In this talk we start with an introduction of this new quantity explaining its basic properties and its holographic calculations. Next, we will present recent numerical results of this quantity in a free scalar field theory and in a spin system, which imply that pseudo entropy can serve as a new quantum order parameter. Finally, we will discuss an application of pseudo entropy to holography in de Sitter spaces and to entanglement phase transitions.