Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime
Abstract We examine the thermodynamics of Euclidean dyonic Taub-Nut/Bolt-AdS4 black holes for a variety of horizon geometries to understand how gauge field regularity conditions influence the thermodynamic relations. We find several distinct features that distinguish the NUT-charged case from its dy...
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Online Access: | https://doi.org/10.1007/JHEP03(2021)039 |
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doaj-ede3cc14ba444393a06d8da08a6ca1892021-03-11T11:21:22ZengSpringerOpenJournal of High Energy Physics1029-84792021-03-012021312810.1007/JHEP03(2021)039Complement to thermodynamics of dyonic Taub-NUT-AdS spacetimeRobert B. Mann0Leopoldo A. Pando Zayas1Miok Park2Department of Physics and Astronomy, University of WaterlooLeinweber Center for Theoretical Physics, University of MichiganSchool of Physics, Korea Institute for Advanced StudyAbstract We examine the thermodynamics of Euclidean dyonic Taub-Nut/Bolt-AdS4 black holes for a variety of horizon geometries to understand how gauge field regularity conditions influence the thermodynamic relations. We find several distinct features that distinguish the NUT-charged case from its dyonic Reissner-Nordstrom counterpart. For the Nut solution, the gauge field vanishes at the horizon and so regularity is ensured. For the Bolt solution we find that the norm of the gauge field is required to vanish at the horizon in order to satisfy both regularity and the first law of thermodynamics. This regularity condition yields a constraint on the electric and magnetic charges and so reduces cohomogeneity of the system; for spherical horizons, the regularity condition removing the Misner string singularity further reduces cohomogeneity. We observe that bolt solutions with increasing electric charge have positive heat capacity, but upon turning on the magnetic charge to make the solution dyonic, we find that the properties of the uncharged one are retained, having both positive and negative heat capacity. We also study the extremal Bolt solution, finding that Misner string disappears at the horizon in the zero temperature limit. We find that the extremal solution has finite-temperature-like behaviour, with the electric potential playing a role similar to temperature.https://doi.org/10.1007/JHEP03(2021)039Black HolesClassical Theories of Gravity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Robert B. Mann Leopoldo A. Pando Zayas Miok Park |
spellingShingle |
Robert B. Mann Leopoldo A. Pando Zayas Miok Park Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime Journal of High Energy Physics Black Holes Classical Theories of Gravity |
author_facet |
Robert B. Mann Leopoldo A. Pando Zayas Miok Park |
author_sort |
Robert B. Mann |
title |
Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime |
title_short |
Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime |
title_full |
Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime |
title_fullStr |
Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime |
title_full_unstemmed |
Complement to thermodynamics of dyonic Taub-NUT-AdS spacetime |
title_sort |
complement to thermodynamics of dyonic taub-nut-ads spacetime |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2021-03-01 |
description |
Abstract We examine the thermodynamics of Euclidean dyonic Taub-Nut/Bolt-AdS4 black holes for a variety of horizon geometries to understand how gauge field regularity conditions influence the thermodynamic relations. We find several distinct features that distinguish the NUT-charged case from its dyonic Reissner-Nordstrom counterpart. For the Nut solution, the gauge field vanishes at the horizon and so regularity is ensured. For the Bolt solution we find that the norm of the gauge field is required to vanish at the horizon in order to satisfy both regularity and the first law of thermodynamics. This regularity condition yields a constraint on the electric and magnetic charges and so reduces cohomogeneity of the system; for spherical horizons, the regularity condition removing the Misner string singularity further reduces cohomogeneity. We observe that bolt solutions with increasing electric charge have positive heat capacity, but upon turning on the magnetic charge to make the solution dyonic, we find that the properties of the uncharged one are retained, having both positive and negative heat capacity. We also study the extremal Bolt solution, finding that Misner string disappears at the horizon in the zero temperature limit. We find that the extremal solution has finite-temperature-like behaviour, with the electric potential playing a role similar to temperature. |
topic |
Black Holes Classical Theories of Gravity |
url |
https://doi.org/10.1007/JHEP03(2021)039 |
work_keys_str_mv |
AT robertbmann complementtothermodynamicsofdyonictaubnutadsspacetime AT leopoldoapandozayas complementtothermodynamicsofdyonictaubnutadsspacetime AT miokpark complementtothermodynamicsofdyonictaubnutadsspacetime |
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