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  • Open Access

Replica phase transition with quantum gravity corrections

Jun Nian1 and Yuan Zhong1,2,*

  • *Contact author: zhongyuan@ucas.ac.cn
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Phys. Rev. D 113, 106030 – Published 26 May, 2026

DOI: https://doi.org/10.1103/s5vj-rk9g

Abstract

Motivated by bulk replica wormholes, we study the boundary effective theory that describes the near-horizon fluctuations of a near-extremal Reissner-Nordström black hole. This theory consists of a Schwarzian mode and a U(1) phase mode. We compute the partition function of this boundary theory on connected geometries, from which the entropy is derived. Our analysis reveals a rich phase structure, in which the dominance of connected or disconnected configurations leads to a phase transition controlled by the temperature and the coupling constants C, K, and E of the one-dimensional effective theory.

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Phys. Rev. D 113, 106030– Published 26 May, 2026
  • Received 10 February 2026
  • Accepted 2 April 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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