Linearized gravity and soft graviton theorem in de Sitter spacetime
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916378531856384 |
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| author | Mao, Pujian Zhou, Bochen |
| author_facet | Mao, Pujian Zhou, Bochen |
| contents | We study the linearized gravity theory in the Newman-Unti gauge in the near horizon region of the de Sitter spacetime. The linearized Einstein equation involves the cosmological constant. The near horizon symmetry consists of near horizon supertranslation and near horizon superrotation. We compute the near horizon supertranslation charge and find the proper near horizon fall-off conditions which uncover a soft graviton theorem from the Ward identity of the near horizon supertranslation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_12027 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Linearized gravity and soft graviton theorem in de Sitter spacetime Mao, Pujian Zhou, Bochen High Energy Physics - Theory General Relativity and Quantum Cosmology We study the linearized gravity theory in the Newman-Unti gauge in the near horizon region of the de Sitter spacetime. The linearized Einstein equation involves the cosmological constant. The near horizon symmetry consists of near horizon supertranslation and near horizon superrotation. We compute the near horizon supertranslation charge and find the proper near horizon fall-off conditions which uncover a soft graviton theorem from the Ward identity of the near horizon supertranslation. |
| title | Linearized gravity and soft graviton theorem in de Sitter spacetime |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2405.12027 |