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19 April 2024

» arxiv » 0903.1176

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Beyond the Einstein Equation of State: Wald Entropy and Thermodynamical Gravity
Maulik K. Parikh ; Sudipta Sarkar ;
Date:	6 Mar 2009
Abstract:	We show that the classical equations of gravity follow from a thermodynamic relation, dQ = T dS, where S is taken to be the Wald entropy, applied to a local Rindler horizon at any point in spacetime. Our approach works for all diffeomorphism-invariant theories of gravity. This suggests that classical gravity may be thermodynamic in origin.
Source:	arXiv, 0903.1176
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