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Entropy discrepancy and total derivatives in trace anomaly
Amin Faraji Astaneh, Alexander Patrushev, Sergey N. Solodukhin
In this note we address the discrepancy found by Hung, Myers and Smolkin between the holographic calculation of entanglement entropy (using the Jacobson-Myers functional for the ho…
Entropy vs Gravitational Action: Do Total Derivatives Matter?
Amin Faraji Astaneh, Alexander Patrushev, Sergey N. Solodukhin
The total derivatives in the gravitational action are usually disregarded as non-producing any non-trivial dynamics. In the context of the gravitational entropy, within Wald's appr…
What surface maximizes entanglement entropy?
Amin Faraji Astaneh, Gary Gibbons, Sergey N. Solodukhin
For a given quantum field theory, provided the area of the entangling surface is fixed, what surface maximizes entanglement entropy? We analyze the answer to this question in four…
Conformal a-charge, correlation functions and conical defects
Sergey N. Solodukhin
In this note we demonstrate that, as we conjectured earlier in [1], the a-charge in the conformal anomaly in dimension manifests in a -point correlation function of energ…
Correlation functions on conical defects
Michael Smolkin, Sergey N. Solodukhin
We explore the new technique developed recently in \cite{Rosenhaus:2014woa} and suggest a correspondence between the -point correlation functions on spacetime with conical defec…