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Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics
Репозиторій DSpace/Manakin
- Домашня сторінка
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- Фізико-технічні та математичні науки
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- Відділення математики
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- Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
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- Symmetry, Integrability and Geometry: Methods and Applications, 2013, том 9
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- Symmetry, Integrability and Geometry: Methods and Applications, 2013, том 9, випуск за цей рік
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Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics
Інший ID:
2010 Mathematics Subject Classification: 83C57; 81Q35; 81T20
DOI: http://dx.doi.org/10.3842/SIGMA.2013.013
DOI: http://dx.doi.org/10.3842/SIGMA.2013.013
Посилання:
Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics / A. Dasgupta // Symmetry, Integrability and Geometry: Methods and Applications. — 2013. — Т. 9. — Бібліогр.: 43 назв. — англ.
Підтримка:
This paper is a contribution to the Special Issue “Loop Quantum Gravity and Cosmology”. The full collection is available at http://www.emis.de/journals/SIGMA/LQGC.html.
This work was supported by NSERC and University of Lethbridge Research Fund.
Дата:
2013
Переглядів:
526
Завантажень:
220
Анотація:
In this article we explore the origin of black hole thermodynamics using semiclassical states in loop quantum gravity. We re-examine the case of entropy using a density matrix for a coherent state and describe correlations across the horizon due to SU(2) intertwiners. We further show that Hawking radiation is a consequence of a non-Hermitian term in the evolution operator, which is necessary for entropy production or depletion at the horizon. This non-unitary evolution is also rooted in formulations of irreversible physics.
