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Journal Article

Generalized Gravitational Entropy from Total Derivative Action

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Miao,  Rong Xin
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1510.04273.pdf
(Preprint), 191KB

JHEP12(2015)100.pdf
(Publisher version), 480KB

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Citation

Dong, X., & Miao, R. X. (2015). Generalized Gravitational Entropy from Total Derivative Action. Journal of high energy physics: JHEP, 2015(12): 100. doi:10.1007/JHEP12(2015)100.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0028-FE75-2
Abstract
We investigate the generalized gravitational entropy from total derivative terms in the gravitational action. Following the method of Lewkowycz and Maldacena, we find that the generalized gravitational entropy from total derivatives vanishes. We compare our results with the work of Astaneh, Patrushev, and Solodukhin. We find that if total derivatives produced nonzero entropy, the holographic and the field-theoretic universal terms of entanglement entropy would not match. Furthermore, the second law of thermodynamics could be violated if the entropy of total derivatives did not vanish.