Regular Article - Theoretical Physics
Replica wormhole as a vacuum-to-vacuum transition
Institute for Theoretical Physics and Cosmology, Zhejiang University of Technology, 310014, Hangzhou, China
2 Center for Joint Quantum Studies and Department of Physics, Tianjin University, 300350, Tianjin, China
3 Institute for Theoretical Physics, University of Amsterdam, 1090 GL, Amsterdam, The Netherlands
Accepted: 14 April 2023
Published online: 28 April 2023
The recent developments related to the black hole information paradox have brought us a confusing object: the replica wormhole. We are trying to better understand the object from the viewpoint of the thermo-mixed double and spontaneous symmetry breaking. In this paper, we show that the replica wormhole can be regarded as a transition between different degenerate vacua, and the corresponding gravitational partition function should be controlled by the manifold of the degenerate vacua. We also check the wormhole partition function in two-dimensional Jackiw–Teitelboim gravity and show that the wormhole saddle is indeed controlled by the dimension of the degenerate vacua. Moreover, it is suggested that the replica wormhole geometries connecting different vacua can be related to the measurement process of soft hair that compares different vacuum configurations.
© The Author(s) 2023
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