Global symmetry, Euclidean gravity, and the black hole information problem
Abstract In this paper we argue for a close connection between the non-existence of global symmetries in quantum gravity and a unitary resolution of the black hole information problem. In particular we show how the essential ingredients of recent calculations of...
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/136789 |
| _version_ | 1826189632846430208 |
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| author | Harlow, Daniel Shaghoulian, Edgar |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Harlow, Daniel Shaghoulian, Edgar |
| author_sort | Harlow, Daniel |
| collection | MIT |
| description | Abstract
In this paper we argue for a close connection between the non-existence of global symmetries in quantum gravity and a unitary resolution of the black hole information problem. In particular we show how the essential ingredients of recent calculations of the Page curve of an evaporating black hole can be used to generalize a recent argument against global symmetries beyond the AdS/CFT correspondence to more realistic theories of quantum gravity. We also give several low-dimensional examples of quantum gravity theories which do not have a unitary resolution of the black hole information problem in the usual sense, and which therefore can and do have global symmetries. Motivated by this discussion, we conjecture that in a certain sense Euclidean quantum gravity is equivalent to holography. |
| first_indexed | 2024-09-23T08:18:42Z |
| format | Article |
| id | mit-1721.1/136789 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:18:42Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1367892023-02-22T21:20:16Z Global symmetry, Euclidean gravity, and the black hole information problem Harlow, Daniel Shaghoulian, Edgar Massachusetts Institute of Technology. Center for Theoretical Physics Abstract In this paper we argue for a close connection between the non-existence of global symmetries in quantum gravity and a unitary resolution of the black hole information problem. In particular we show how the essential ingredients of recent calculations of the Page curve of an evaporating black hole can be used to generalize a recent argument against global symmetries beyond the AdS/CFT correspondence to more realistic theories of quantum gravity. We also give several low-dimensional examples of quantum gravity theories which do not have a unitary resolution of the black hole information problem in the usual sense, and which therefore can and do have global symmetries. Motivated by this discussion, we conjecture that in a certain sense Euclidean quantum gravity is equivalent to holography. 2021-11-01T14:33:23Z 2021-11-01T14:33:23Z 2021-04-19 2021-04-25T04:39:25Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136789 Journal of High Energy Physics. 2021 Apr 19;2021(4):175 PUBLISHER_CC en https://doi.org/10.1007/JHEP04(2021)175 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Harlow, Daniel Shaghoulian, Edgar Global symmetry, Euclidean gravity, and the black hole information problem |
| title | Global symmetry, Euclidean gravity, and the black hole information problem |
| title_full | Global symmetry, Euclidean gravity, and the black hole information problem |
| title_fullStr | Global symmetry, Euclidean gravity, and the black hole information problem |
| title_full_unstemmed | Global symmetry, Euclidean gravity, and the black hole information problem |
| title_short | Global symmetry, Euclidean gravity, and the black hole information problem |
| title_sort | global symmetry euclidean gravity and the black hole information problem |
| url | https://hdl.handle.net/1721.1/136789 |
| work_keys_str_mv | AT harlowdaniel globalsymmetryeuclideangravityandtheblackholeinformationproblem AT shaghoulianedgar globalsymmetryeuclideangravityandtheblackholeinformationproblem |