The Thermodynamics of Cosmological Horizons and Their Holographic Description in de Sitter Space
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917442454814720 |
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| author | Dey, Indranil Nanda, Kanhu Kishore Roy, Akashdeep Sharma, Deepak Kumar Trivedi, Sandip P. |
| author_facet | Dey, Indranil Nanda, Kanhu Kishore Roy, Akashdeep Sharma, Deepak Kumar Trivedi, Sandip P. |
| contents | We analyse the laws of thermodynamics governing the behaviour of cosmological horizons in de Sitter space and their map to a holographic description at future infinity, $\mathcal{I}^+$. In this case, the boundary can receive signals from two cosmological horizons. We find a universal form for the first law of thermodynamics, valid in general circumstances, when matter-energy crosses both horizons and impinges on the boundary. This universal form leads to a well defined notion of entropy in the holographic dual. It is specified on a co-dimension one surface of the boundary, and can be expressed as a function of two boundary charges, pressure and angular momentum, both of which are derived from the Brown-York stress tensor. Additional comments on the second law, confusing factors of $i$ which arise, and comments pertaining to JT gravity, are included towards the end. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_25035 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The Thermodynamics of Cosmological Horizons and Their Holographic Description in de Sitter Space Dey, Indranil Nanda, Kanhu Kishore Roy, Akashdeep Sharma, Deepak Kumar Trivedi, Sandip P. High Energy Physics - Theory We analyse the laws of thermodynamics governing the behaviour of cosmological horizons in de Sitter space and their map to a holographic description at future infinity, $\mathcal{I}^+$. In this case, the boundary can receive signals from two cosmological horizons. We find a universal form for the first law of thermodynamics, valid in general circumstances, when matter-energy crosses both horizons and impinges on the boundary. This universal form leads to a well defined notion of entropy in the holographic dual. It is specified on a co-dimension one surface of the boundary, and can be expressed as a function of two boundary charges, pressure and angular momentum, both of which are derived from the Brown-York stress tensor. Additional comments on the second law, confusing factors of $i$ which arise, and comments pertaining to JT gravity, are included towards the end. |
| title | The Thermodynamics of Cosmological Horizons and Their Holographic Description in de Sitter Space |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2604.25035 |