• Open Access

Black hole and de Sitter microstructures from a semiclassical perspective

Chitraang Murdia, Yasunori Nomura, and Kyle Ritchie
Phys. Rev. D 107, 026016 – Published 20 January 2023

Abstract

We describe two different, but equivalent semiclassical views of black hole physics in which the equivalence principle and unitarity are both accommodated. In one, unitarity is built-in, while the black hole interior emerges only effectively as a collective phenomenon involving horizon (and possibly other) degrees of freedom. In the other, more widely studied approach, the existence of the interior is manifest, while the unitarity of the underlying dynamics can be captured only indirectly by incorporating certain nonperturbative effects of gravity. These two pictures correspond to a distant description and the description based on entanglement islands/replica wormholes, respectively. We also present a holographic description of de Sitter spacetime based on the former approach, in which the holographic theory is located on the stretched horizon of a static patch. We argue that the existence of these two approaches is rooted in the two formulations of quantum mechanics: the canonical and path integral formalisms.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
16 More
  • Received 22 July 2022
  • Accepted 7 December 2022

DOI:https://doi.org/10.1103/PhysRevD.107.026016

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.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & AstrophysicsParticles & Fields

Authors & Affiliations

Chitraang Murdia1,2, Yasunori Nomura1,2,3, and Kyle Ritchie1,2

  • 1Berkeley Center for Theoretical Physics, Department of Physics, University of California, Berkeley, California 94720, USA
  • 2Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 3Kavli Institute for the Physics and Mathematics of the Universe (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 107, Iss. 2 — 15 January 2023

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×