Scalar charges and the first law of black hole thermodynamics
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–...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-07-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318303691 |
| _version_ | 1811301105487839232 |
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| author | Dumitru Astefanesei Romina Ballesteros David Choque Raúl Rojas |
| author_facet | Dumitru Astefanesei Romina Ballesteros David Choque Raúl Rojas |
| author_sort | Dumitru Astefanesei |
| collection | DOAJ |
| description | 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 on 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. |
| first_indexed | 2024-04-13T07:01:48Z |
| format | Article |
| id | doaj.art-17c985c8ab07479fbb78453c7f2f7968 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-13T07:01:48Z |
| publishDate | 2018-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-17c985c8ab07479fbb78453c7f2f79682022-12-22T02:57:05ZengElsevierPhysics Letters B0370-26932018-07-017824754Scalar charges and the first law of black hole thermodynamicsDumitru Astefanesei0Romina Ballesteros1David Choque2Raúl Rojas3Pontificia Universidad Católica de Valparaíso, Instituto de Física, Av. Brasil 2950, Valparaíso, Chile; Corresponding author.Pontificia Universidad Católica de Valparaíso, Instituto de Física, Av. Brasil 2950, Valparaíso, ChileUniversidad Adolfo Ibáñez, Dept. de Ciencias, Facultad de Artes Liberales, Av. Padre Hurtado 750, Viña del Mar, Chile; Universidad Nacional de San António Abad del Cusco, Av. La Cultura 733, Cusco, PeruPontificia Universidad Católica de Valparaíso, Instituto de Física, Av. Brasil 2950, Valparaíso, ChileWe 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 on 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.http://www.sciencedirect.com/science/article/pii/S0370269318303691 |
| spellingShingle | Dumitru Astefanesei Romina Ballesteros David Choque Raúl Rojas Scalar charges and the first law of black hole thermodynamics Physics Letters B |
| title | Scalar charges and the first law of black hole thermodynamics |
| title_full | Scalar charges and the first law of black hole thermodynamics |
| title_fullStr | Scalar charges and the first law of black hole thermodynamics |
| title_full_unstemmed | Scalar charges and the first law of black hole thermodynamics |
| title_short | Scalar charges and the first law of black hole thermodynamics |
| title_sort | scalar charges and the first law of black hole thermodynamics |
| url | http://www.sciencedirect.com/science/article/pii/S0370269318303691 |
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