Replica wormhole and information retrieval in the SYK model coupled to Majorana chains
Abstract
Motivated by recent studies of the information paradox in (1+1)-D anti-de Sitter spacetime with a bath described by a (1+1)-D conformal field theory, we study the dynamics of second Ŕenyi entropy of the Sachdev-Ye-Kitaev (SYK) model (χ) coupled to a Majorana chain bath (ψ). The system is prepared in the thermofield double (TFD) state and then evolved by HL + HR. For small system-bath coupling, we find that the second Rényi entropy $$S^(2)_{χL,χR}$$ of the SYK model undergoes a first order transition during the evolution. In the sense of holographic duality, the long-time solution corresponds to a “replica wormhole”. The transition time corresponds to the Page time of a black hole coupled to a thermal bath. We further study the information scrambling and retrieval by introducing a classical control bit, which controls whether or not we add a perturbation in the SYK system. The mutual information between the bath and the control bit shows a positive jump at the Page time, indicating that the entanglement wedge of the bath includes an island in the holographic bulk.
- Authors:
-
- Princeton Univ., NJ (United States)
- Stanford Univ., CA (United States). Stanford Inst. for Theoretical Physics and Dept. of Physics
- California Institute of Technology (CalTech), Pasadena, CA (United States). Walter Burke Inst. for Theoretical Physics and Inst. for Quantum Information and Matter
- Publication Date:
- Research Org.:
- Univ. of California, Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Simons Foundation
- OSTI Identifier:
- 1646615
- Grant/Contract Number:
- SC0019380; 1720504
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2020; Journal Issue: 6; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Nature
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 1/N Expansion; AdS-CFT Correspondence; 2D Gravity
Citation Formats
Chen, Yiming, Qi, Xiao-Liang, and Zhang, Pengfei. Replica wormhole and information retrieval in the SYK model coupled to Majorana chains. United States: N. p., 2020.
Web. doi:10.1007/JHEP06(2020)121.
Chen, Yiming, Qi, Xiao-Liang, & Zhang, Pengfei. Replica wormhole and information retrieval in the SYK model coupled to Majorana chains. United States. https://doi.org/10.1007/JHEP06(2020)121
Chen, Yiming, Qi, Xiao-Liang, and Zhang, Pengfei. Fri .
"Replica wormhole and information retrieval in the SYK model coupled to Majorana chains". United States. https://doi.org/10.1007/JHEP06(2020)121. https://www.osti.gov/servlets/purl/1646615.
@article{osti_1646615,
title = {Replica wormhole and information retrieval in the SYK model coupled to Majorana chains},
author = {Chen, Yiming and Qi, Xiao-Liang and Zhang, Pengfei},
abstractNote = {Motivated by recent studies of the information paradox in (1+1)-D anti-de Sitter spacetime with a bath described by a (1+1)-D conformal field theory, we study the dynamics of second Ŕenyi entropy of the Sachdev-Ye-Kitaev (SYK) model (χ) coupled to a Majorana chain bath (ψ). The system is prepared in the thermofield double (TFD) state and then evolved by HL + HR. For small system-bath coupling, we find that the second Rényi entropy $S^(2)_{χL,χR}$ of the SYK model undergoes a first order transition during the evolution. In the sense of holographic duality, the long-time solution corresponds to a “replica wormhole”. The transition time corresponds to the Page time of a black hole coupled to a thermal bath. We further study the information scrambling and retrieval by introducing a classical control bit, which controls whether or not we add a perturbation in the SYK system. The mutual information between the bath and the control bit shows a positive jump at the Page time, indicating that the entanglement wedge of the bath includes an island in the holographic bulk.},
doi = {10.1007/JHEP06(2020)121},
journal = {Journal of High Energy Physics (Online)},
number = 6,
volume = 2020,
place = {United States},
year = {Fri Jun 19 00:00:00 EDT 2020},
month = {Fri Jun 19 00:00:00 EDT 2020}
}
Web of Science
Figures / Tables:
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