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A violation of global symmetries from replica wormholes and the fate of black hole remnants

Hsin, Po-Shen and Iliesiu, Luca V. and Yang, Zhenbin (2020) A violation of global symmetries from replica wormholes and the fate of black hole remnants. . (Submitted)

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We show that the presence of replica wormholes in the Euclidean path integral of gravity leads to a non-perturbative violation of any global symmetry present in the low-energy description of quantum gravity. Explicitly, we compute the scattering probability between different charged states in several low-dimensional models of quantum gravity and find a non-vanishing answer. This suggests that the set of all charged states is typically over-complete, which has drastic consequences for the fate of black hole remnants that could carry a global symmetry charge. In the holographic context, we argue that the presence of such a symmetry in the effective description of the bulk should appear on the boundary as an emergent global symmetry after ensemble averaging.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Hsin, Po-Shen0000-0002-4764-1476
Iliesiu, Luca V.0000-0001-7567-7516
Additional Information:We thank Juan Maldacena, Arvin Shahbazi Moghaddam, Stephen Shenker and Douglas Stanford for comments on a draft and for helpful discussions. We thank Edgar Shaghoulian for comments on a draft. The work of P.-S. H. is supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award Number DE-SC0011632, and by the Simons Foundation through the Simons Investigator Award. LVI was supported in part by the Simons Collaboration on Ultra-Quantum Matter, a Simons Foundation Grant with No. 651440. ZY is supported in part by the Simons Foundation through the It from Qubit Collaboration.
Group:Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011632
Simons FoundationUNSPECIFIED
Simons Foundation651440
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Record Number:CaltechAUTHORS:20201124-085240921
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106803
Deposited By: Joy Painter
Deposited On:24 Nov 2020 17:38
Last Modified:24 Nov 2020 17:38

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