Interior of a unitarily evaporating black hole
Abstract
We study microscopic operators describing the experience of an observer falling into the horizon of a unitarily evaporating black hole. For a young black hole, these operators can be taken to act only on the degrees of freedom in the black hole region: the soft - or stretched horizon - modes as well as the semiclassical modes in the zone region. On the other hand, for an old black hole, the operators must also involve radiation emitted earlier; the difference between the two cases comes from statistics associated with the coarse graining performed to obtain the effective theory of the interior. We find that the operators relevant for the interior theory can be defined globally as standard linear operators throughout the microstates, which obey the correct algebra up to corrections exponentially suppressed in the ratio of excitation energy to the Hawking temperature. We conjecture that the existence of such global operators is required for the emergence of the semiclassical picture. We also elucidate the relation between the present construction and entanglement wedge reconstruction of the interior.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); Japan Society for the Promotion of Science (JSPS)
- OSTI Identifier:
- 1635588
- Alternate Identifier(s):
- OSTI ID: 1737629
- Grant/Contract Number:
- AC02-05CH11231; SC0019380; 15H05895
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Name: Physical Review. D. Journal Volume: 102 Journal Issue: 2; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Nomura, Yasunori. Interior of a unitarily evaporating black hole. United States: N. p., 2020.
Web. doi:10.1103/PhysRevD.102.026001.
Nomura, Yasunori. Interior of a unitarily evaporating black hole. United States. https://doi.org/10.1103/PhysRevD.102.026001
Nomura, Yasunori. Wed .
"Interior of a unitarily evaporating black hole". United States. https://doi.org/10.1103/PhysRevD.102.026001.
@article{osti_1635588,
title = {Interior of a unitarily evaporating black hole},
author = {Nomura, Yasunori},
abstractNote = {We study microscopic operators describing the experience of an observer falling into the horizon of a unitarily evaporating black hole. For a young black hole, these operators can be taken to act only on the degrees of freedom in the black hole region: the soft - or stretched horizon - modes as well as the semiclassical modes in the zone region. On the other hand, for an old black hole, the operators must also involve radiation emitted earlier; the difference between the two cases comes from statistics associated with the coarse graining performed to obtain the effective theory of the interior. We find that the operators relevant for the interior theory can be defined globally as standard linear operators throughout the microstates, which obey the correct algebra up to corrections exponentially suppressed in the ratio of excitation energy to the Hawking temperature. We conjecture that the existence of such global operators is required for the emergence of the semiclassical picture. We also elucidate the relation between the present construction and entanglement wedge reconstruction of the interior.},
doi = {10.1103/PhysRevD.102.026001},
journal = {Physical Review. D.},
number = 2,
volume = 102,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 2020},
month = {Wed Jul 01 00:00:00 EDT 2020}
}
https://doi.org/10.1103/PhysRevD.102.026001
Web of Science
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