Thermodynamics of Dyonic NUT Charged Black Holes with Entropy as Noether Charge
arXiv:2107.00182 · doi:10.1007/JHEP08(2021)152
Abstract
We investigate the thermodynamic behaviour of Lorentzian Dyonic Taub-NUT Black Hole spacetimes. We consider two possibilities in their description: one in which their entropy is interpreted to be one quarter of the horizon area (the horizon entropy), and another in which the Misner string also contributes to the entropy (the Noether charge entropy). We find that there can be as many as three extremal black holes (or as few as zero) depending on the choice of parameters, and that the dependence of the free energy on temperature -- and the resultant phase behaviour -- depends very much on which of these situations holds. Some of the phase behaviour we observe holds regardless of which interpretation of the entropy holds. However another class of phase transition structures occurs only if the Noether charge interpretation of the entropy is adopted.
23 pages, 25 figures
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- Consistent mass formulas for higher even-dimensional Taub-NUT spacetimes and their AdS counterparts
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- Dyonic Taub-NUT-AdS: Unconstraint Thermodynamics and Phase Structure
- Dyonic Taub-NUT-AdS Spaces: Phase Structures of all Horizon Geometries
- Dyonic Taub-NUT-AdS Black Branes: Thermodynamics and Phase Diagrams
- Conformal scalar NUT-like dyons in conformal electrodynamics