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Entropy for curvature squared gravity using surface term and auxiliary field (1304.7085v1)
Published 26 Apr 2013 in hep-th and gr-qc
Abstract: We compute the entropies for general curvature squared gravities in arbitrary dimensions using the conserved charge and Virasoro algebra from surface term. We introduce an auxiliary tensor field in order to obtain the boundary action which establish a variational principle. Our results reproduce those in some specific models, that is, the Gauss-Bonnet, new massive gravity (NMG), and critical gravity.
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