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  A note on the resolution of the entropy discrepancy

Huang, Y., & Miao, R. X. (2015). A note on the resolution of the entropy discrepancy. Physics Letters B, 749, 489-494. doi:10.1016/j.physletb.2015.08.039.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-7CF5-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-9C6A-A
Genre: Journal Article

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 Creators:
Huang, Yue, Author
Miao, Rong Xin1, Author              
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th,General Relativity and Quantum Cosmology, gr-qc
 Abstract: It is found by Hung, Myers and Smolkin that there is entropy discrepancy between the field theoretical and the holographic results for the CFTs in 6d spacetime. Recently, there appears two different proposals for the resolution of this puzzle. One proposes to use the anomaly of entropy and the generalized Wald entropy to resolve the HMS puzzle. While the other one suggests to use the entropy of total derivatives to explain the HMS mismatch. We investigate these two proposals carefully in this note. By studying the example of Einstein gravity, we find that it is the proposal of [2] rather than the one of [3,4] that can solve the HMS puzzle. Besides, we find that there is arbitrariness in the derivations of Wald entropy. And only the total entropy is well-defined.

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 Dates: 2015-04-0920152015
 Publication Status: Published in print
 Pages: 12 pages, no figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1504.02301
DOI: 10.1016/j.physletb.2015.08.039
 Degree: -

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Title: Physics Letters B
Source Genre: Journal
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Publ. Info: North-Holland
Pages: - Volume / Issue: 749 Sequence Number: - Start / End Page: 489 - 494 Identifier: ISSN: 0370-2693
CoNE: /journals/resource/954925524777