Kothawala, Dawood ; Padmanabhan, T. (2009) Thermodynamic structure of Lanczos-Lovelock field equations from near-horizon symmetries Physical Review D - Particles, Fields, Gravitation and Cosmology, 79 (10). 104020_1-104020_9. ISSN 1550-7998
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Official URL: http://prd.aps.org/abstract/PRD/v79/i10/e104020
Related URL: http://dx.doi.org/10.1103/PhysRevD.79.104020
Abstract
It is well known that, for a wide class of spacetimes with horizons, Einstein equations near the horizon can be written as a thermodynamic identity. It is also known that the Einstein tensor acquires a highly symmetric form near static, as well as stationary, horizons. We show that, for generic static spacetimes, this highly symmetric form of the Einstein tensor leads quite naturally and generically to the interpretation of the near-horizon field equations as a thermodynamic identity. We further extend this result to generic static spacetimes in Lanczos-Lovelock gravity, and show that the near-horizon field equations again represent a thermodynamic identity in all these models. These results confirm the conjecture that this thermodynamic perspective of gravity extends far beyond Einstein-s theory.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 72588 |
Deposited On: | 29 Nov 2011 05:49 |
Last Modified: | 29 Nov 2011 05:49 |
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