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On holography for a half de Sitter Space

05/30 2023 Seminar
  • Title On holography for a half de Sitter Space
  • Speaker Shan-Ming Ruan (Kyoto University)
  • Date 14:00 May 30, 2023
  • Venue 6620,South Building, ITP Online: Tencent No. :557-714-677
  • Abstract
    Over the past twenty years, fruitful developments on the interface between quantum information theory, quantum field theory, and quantum gravity are achieved in the framework of the AdS/CFT correspondence. A long-standing and intriguing question is: does the holographic principle apply to cosmologies like de Sitter spacetime? In this work, we consider a half dS spacetime which is closed by a timelike boundary. By employing the holographic entanglement entropy, we argue that gravity on a half dS$_{d+1}$ is dual to a highly non-local field theory without gravity on dS$_d$.
    Shan-Ming Ruan is currently an “It From Qubit” postdoctoral fellow at Yukawa Institute for Theoretical Physics, Kyoto University. He graduated from Lanzhou University and obtained his master's degree under the supervision of Rong-Gen Cai at the Institute of Theoretical Physics, Chinese Academy of Sciences. He obtained his Ph.D. from Perimeter Institute and the University of Waterloo under the supervision of Rob Myers. His research focuses on understanding the interior of black holes via the connections between quantum information and quantum gravity.
    Shao-Jiang Wang