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We investigate the extended thermodynamic properties of higher-dimensional Taub-NUT/Bolt-AdS spaces where a cosmological constant is treated as a pressure. We find a general form for thermodynamic volumes of Taub-NUT/Bolt-AdS black holes…

High Energy Physics - Theory · Physics 2015-06-22 Chong Oh Lee

In theories of semi-classical quantum gravity where the cosmological constant is considered a thermodynamic variable, the gravitational mass of a black hole has been shown to correspond to the enthalpy of the thermodynamic system, rather…

High Energy Physics - Theory · Physics 2015-08-04 Clifford V. Johnson

We consider higher dimensional topological Taub-NUT/Bolt-AdS solutions where a cosmological constant is treated as a pressure. The thermodynamic quantities of these solutions are explicitly calculated. Furthermore, we find these…

General Relativity and Quantum Cosmology · Physics 2015-12-29 Chong Oh Lee

We study phase structures of Lorentzian Dyonic Taub-NUT-AdS spacetimes for different horizon geometries, which are spherical, flat, and hyperbolic. We check the consistency of our extended thermodynamics approach through satisfying the…

General Relativity and Quantum Cosmology · Physics 2024-04-16 Mohamed Tharwat , Amr AlBarqawy , Adel Awad , Esraa Elkhateeb

We consider the thermodynamic properties of $(d+1)$-dimensional spacetimes with NUT charges. Such spacetimes are asymptotically locally anti de Sitter (or flat), with non-trivial topology in their spatial sections, and can have fixed point…

High Energy Physics - Theory · Physics 2010-04-05 R. Clarkson , L. Fatibene , R. B. Mann

We study thermodynamic aspects of ordinary and lower dimensional noncommutative black holes within an extended anti-de Sitter phase space by treating the negative cosmological constant and the minimal cut-off length as thermodynamic…

General Relativity and Quantum Cosmology · Physics 2025-12-29 Athanasios G. Tzikas

Here we extend the approach developed in \cite{adel_2} to study the thermodynamics of Taub-NUT-AdS and dyonic Taub-NUT-AdS solutions. Furthermore, we investigate in details the possible phase structures of the dyonic Taub-NUT-AdS solution.…

General Relativity and Quantum Cosmology · Physics 2023-09-22 Adel Awad , Esraa Elkhateeb

Motivated by the recent developments in the thermodynamics of Taub-NUT spaces and the absence of Misner strings in Taub-NUT solutions with flat horizons, we investigated the phase structure of dyonic Taub-NUT solutions. We follow the…

General Relativity and Quantum Cosmology · Physics 2026-01-12 Amr AlBarqawy , Adel Awad , Esraa Elkhateeb , Mohamed Tharwat

In this paper, we consider Lovelock gravity in presence of two Born-Infeld types of nonlinear electrodynamics and study their thermodynamical behavior. We extend the phase space by considering cosmological constant as a thermodynamical…

General Relativity and Quantum Cosmology · Physics 2017-10-23 S. H. Hendi , S. Panahiyan , B. Eslam Panah

We present details of the harmonic space construction of a quaternionic extension of the four-dimensional Taub-NUT metric. As the main merit of the harmonic space approach, the metric is obtained in an explicit form following a generic set…

High Energy Physics - Theory · Physics 2009-10-31 Evgeny Ivanov , Galliano Valent

The local and global thermal phase structure for asymptotically anti-de Sitter black holes charged under an abelian gauge group, with both Gauss-Bonnet and quartic field strength corrections, is mapped out for all parameter space. We work…

High Energy Physics - Theory · Physics 2009-07-22 Dionysios Anninos , Georgios Pastras

We discuss and compare at length the results of two methods used recently to describe the thermodynamics of Taub-NUT solutions in a deSitter background. In the first approach ($\mathbb{% C}$-approach), one deals with an analytically…

High Energy Physics - Theory · Physics 2013-05-29 Robert Mann , Cristian Stelea

The talk is devoted to the "extended phase space" approach to Quantum Geometrodynamics. The premises that have led to the formulation of this approach are briefly reviewed, namely, non-trivial topology of the Universe which implies the…

General Relativity and Quantum Cosmology · Physics 2011-01-18 T. P. Shestakova

Recent work has shown the existence of a unique nonlinear extension of electromagnetism which preserves conformal symmetry and allows for the freedom of duality rotations. Moreover, black holes and gravitational waves have been found to…

General Relativity and Quantum Cosmology · Physics 2021-09-21 Daniel Flores-Alfonso , Román Linares , Marco Maceda

We study the Hessian geometry of toric multi-Taub-NUT metrics and their phase change phenomena via the images of their moment maps. This generalizes an earlier paper on toric Gibbons-Hawking metrics.

Differential Geometry · Mathematics 2018-01-23 Jian Zhou

On Taub-NUT spacetime, we investigate hydrodynamic properties of perfect fluid spiraling inward toward the spacetime along a conical surface. On the equatorial plane of the Taub-NUT spacetime, we derive radial equations of motion with…

General Relativity and Quantum Cosmology · Physics 2010-05-25 Soon-Tae Hong , Sung-Won Kim

When we consider five-dimensional warped Taub-NUT/Bolt AdS black string with minimally coupled massive scalar field, we calculate entropy by using the brick wall method. It is found that they are proportional to being quadratically…

General Relativity and Quantum Cosmology · Physics 2017-01-25 Chong Oh Lee

We analyze noncommutative deformations of a higher dimensional anti-de Sitter-Einstein-Born-Infeld black hole. Two models based on noncommutative inspired distributions of mass and charge are discussed and their thermodynamical properties…

High Energy Physics - Theory · Physics 2016-07-01 Angélica González , Román Linares , Marco Maceda , Oscar Sánchez-Santos

The paper studies the physical characteristics for the extended $f(P)$ cubic gravity from a transitive perspective based on dynamical system analysis, by considering the linear stability theory in two specific cases, corresponding to…

General Relativity and Quantum Cosmology · Physics 2020-06-10 Mihai Marciu

In the present work, we discuss how the functional form of thermodynamic observables can be deduced from the geometric properties of subsets of phase space. The geometric quantities taken into account are mainly extrinsic curvatures of the…

Statistical Mechanics · Physics 2020-05-01 Ghofrane Bel-Hadj-Aissa , Matteo Gori , Vittorio Penna , Giulio Pettini , Roberto Franzosi
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