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相关论文: Consistent mass formulas for higher even-dimension…

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In our previous work [D. Wu and S.-Q. Wu, Phys. Rev. D 108, 064034 (2023)], we have formulated consistent thermodynamic first law and Bekenstein-Smarr mass formulae for all higher even-dimensional uncharged Taub-NUT (AdS) spacetimes through…

广义相对论与量子宇宙学 · 物理学 2023-09-19 Shuang-Qing Wu , Di Wu

In our previous work, a novel idea that the NUT charge can be thought of as a thermodynamical multi-hair has been advocated to describe perfectly the thermodynamical character of the generic four-dimensional Taub-NUT spacetimes. According…

广义相对论与量子宇宙学 · 物理学 2022-06-08 Di Wu , Shuang-Qing Wu

Recently, the so-called ``consistent thermodynamics'' of the Lorentzian Reissner-Nordstr\"{o}m (RN)-NUT-AdS$_4$ spacetimes has been pursued by a lot of efforts via different means. Among these attempts, we had proposed a novel idea that…

广义相对论与量子宇宙学 · 物理学 2023-10-13 Di Wu , Shuang-Qing Wu

It is demonstrated that the generic four-dimensional Taub-Newman-Unti-Tamburino (Taub-NUT) spacetimes can be perfectly described in terms of three or four different kinds of thermodynamic hairs: the Komar mass ($M = m$), the "angular…

高能物理 - 理论 · 物理学 2019-12-04 Shuang-Qing Wu , Di Wu

In this paper, we derive the consistent thermodynamics of the four-dimensional Lorentzian charged Reissner-Nordstr\"om-NUT (RN-NUT), Kerr-Newman-NUT (KN-NUT), and RN-NUT-AdS spacetimes in the framework of the ($\psi-\mathcal{N}$)-pair…

广义相对论与量子宇宙学 · 物理学 2023-07-12 Di Wu

Motivated by recent activities in Lorentzian Taub-NUT space thermodynamics, we calculate conserved charges of these spacetimes. We find additional mass, nut, angular momentum, electric and magnetic charge densities distributed along Misner…

高能物理 - 理论 · 物理学 2022-06-29 Adel Awad , Somaya Eissa

The thermodynamics of the Taub-NUT solution has been predominantly studied in the Euclidean sector, upon imposing the condition for the absence of Misner strings. Such thermodynamics is quite exceptional: the periodicity of the Euclidean…

高能物理 - 理论 · 物理学 2019-10-02 Robie A. Hennigar , David Kubiznak , Robert B. Mann

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…

高能物理 - 理论 · 物理学 2013-05-29 Robert Mann , Cristian Stelea

Picking up the threads on a recent proposal [arXiv:1903.08668], we show how to formulate consistent thermodynamics of Lorentzian Taub-NUT spacetimes in the presence of electric and magnetic charges. Namely, with an entropy identified with a…

高能物理 - 理论 · 物理学 2019-04-02 Alvaro Ballon , Finnian Gray , David Kubiznak

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…

高能物理 - 理论 · 物理学 2010-04-05 R. Clarkson , L. Fatibene , R. B. Mann

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…

高能物理 - 理论 · 物理学 2015-06-22 Chong Oh Lee

We apply the generalised Komar method proposed in [arxiv:2208.05494] to Taub-NUT-AdS spacetime in the theory of Einstein gravity plus a cosmological constant. Based on a generalised closed 2-form, we derive the total mass and NUT charge of…

高能物理 - 理论 · 物理学 2023-09-06 Jun-Fei Liu , Hai-Shan Liu

First, we construct the Taub-NUT/bolt solutions of $(2k+2)$-dimensinal Einstein-Maxwell gravity, when all the factor spaces of $2k$-dimensional base space $\mathcal{B}$ have positive curvature. These solutions depend on two extra…

高能物理 - 理论 · 物理学 2008-11-26 M. H. Dehghani , A. Khodam-Mohammadi

In this paper, via employing the uniformly modified form of the generalized off-shell Helmholtz free energy, we investigate the topological numbers for the four-dimensional neutral Lorentzian Taub-NUT, Taub-NUT-AdS and Kerr-NUT spacetimes,…

广义相对论与量子宇宙学 · 物理学 2023-05-08 Di Wu

Motivated by the absence of Misner string in the Euclidean Taub-Bolt/NUT solutions with flat horizons, we present a new treatment for studying the thermodynamics of these spactimes. This treatment is based on introducing a new charge,…

广义相对论与量子宇宙学 · 物理学 2020-07-22 Adel Awad , Somaya Eissa

We study a charged Taub-NUT spacetime solution in the DGP brane. We show that the Reissner-Nordstrom-Taub-NUT-de Sitter solution of Einstein-Maxwell gravity solves the corresponding equations of motion, where the cosmological constant is…

广义相对论与量子宇宙学 · 物理学 2023-02-15 Haryanto M. Siahaan

We show that the class of four-dimensional Taub-Bolt(NUT) spacetimes with positive cosmological constant for some values of NUT charges are stable and have entropies that are greater than that of de Sitter spacetime, in violation of the…

高能物理 - 理论 · 物理学 2007-05-23 R. Clarkson , A. M. Ghezelbash , R. B. Mann

We give a review of the existence of Taub-NUT/bolt solutions in Einstein Gauss-Bonnet gravity with the parameter $\alpha $ in six dimensions. Although the spacetime with base space $S^{2}\times S^{2}$ has curvature singularity at $r=N$,…

高能物理 - 理论 · 物理学 2009-02-20 A. Khodam-Mohammadi , M. Monshizadeh

Based on the recent paper hep-th/0503045, we derive a formula of calculating conserved charges in even dimensional asymptotically {\it locally} anti-de Sitter space-times by using the definition of Wald and Zoupas. This formula generalizes…

高能物理 - 理论 · 物理学 2008-11-26 Rong-Gen Cai , Li-Ming Cao

We study the behavior of phase transitions for the four-dimensional charged Taub-NUT-AdS spacetime with the Newman-Unti-Tamburino (NUT) parameter interpreted as the thermodynamic multihair in the extended thermodynamic phase space, and…

广义相对论与量子宇宙学 · 物理学 2021-04-29 Yao Xiao , Jialin Zhang , Hongwei Yu
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