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説明
We study the effect of self-gravity on entropy by directly solving the 4D semi-classical Einstein equation. In particular, we focus on whether the Bekenstein-Hawking formula holds when self-gravity is extremely strong. As an example, we consider a simple spherically symmetric static configuration consisting of many quanta and construct a self-consistent non-perturbative solution for $\hbar$ in which the entropy exactly follows the area law for many local degrees of freedom of any kind. This can be a candidate for black holes in quantum theory. It represents a compact dense configuration with near-Planckian curvatures, and the interior typically behaves like a local thermal state due to particle creation. Here, the information content is stored in the interior bulk, and the self-gravity plays an essential role in changing the entropy from the volume law to the area law. We finally discuss implications to black holes in quantum gravity and a speculative view of entropy as a gravitational charge.
20 pages + 3 figures. Version published in Nuclear Physics B. (With keeping the main results, change the title and abstract; modified and expanded Introduction and Conclusion including relations with other works and several new discussions; added references.)
収録刊行物
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- Nuclear Physics B
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Nuclear Physics B 1002 116531-, 2024-05
Elsevier BV
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キーワード
- High Energy Physics - Theory
- High Energy Astrophysical Phenomena (astro-ph.HE)
- Quantum Physics
- FOS: Physical sciences
- QC770-798
- General Relativity and Quantum Cosmology (gr-qc)
- General Relativity and Quantum Cosmology
- High Energy Physics - Phenomenology
- High Energy Physics - Phenomenology (hep-ph)
- High Energy Physics - Theory (hep-th)
- Nuclear and particle physics. Atomic energy. Radioactivity
- Astrophysics - High Energy Astrophysical Phenomena
- Quantum Physics (quant-ph)
詳細情報 詳細情報について
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- CRID
- 1360302866846661120
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- ISSN
- 05503213
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE