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Scalar charges and the first law of black hole thermodynamics

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arxiv 1803.11317 v2 pith:HMKGER6C submitted 2018-03-30 hep-th

classification hep-th
keywords scalarthermodynamicsasymptoticblackboundarychargesfieldfirst
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We present a variational formulation of Einstein-Maxwell-dilaton theory in flat spacetime, when the asymptotic value of the scalar field is not fixed. We obtain the boundary terms that make the variational principle well posed and then compute the finite gravitational action and corresponding Brown-York stress tensor. We show that the total energy has a new contribution that depends of the asymptotic value of the scalar field and discuss the role of scalar charges for the first law of thermodynamics. We also extend our analysis to hairy black holes in Anti-de Sitter spacetime and investigate the thermodynamics of an exact solution that breaks the conformal symmetry of the boundary.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Exploring String Theory Solutions: Black hole thermodynamics with $\alpha'$ corrections and type II compactifications

    hep-th 2025-05 unverdicted novelty 1.0 of 10

    A doctoral thesis restating published results on α'-corrected black holes in heterotic string theory and on type II flux compactifications, with no new standalone results.

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