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相关论文: Voros product and noncommutative inspired black ho…

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The importance of the Voros product in defining a noncommutative Schwarzschild black hole is shown. The entropy is then computed and the area law is shown to hold upto order $\frac{1}{\sqrt{\theta}}e^{-M^2/\theta}$. The leading correction…

广义相对论与量子宇宙学 · 物理学 2015-06-12 Sunandan Gangopadhyay

We emphasize the importance of the Voros product in defining a noncommutative inspired Reissner-Nordstr\"{o}m black hole. The entropy of this black hole is then computed in the tunneling approach and is shown to obey the area law at the…

高能物理 - 理论 · 物理学 2015-05-20 Sunandan Gangopadhyay , Dibakar Roychowdhury

We show the importance of the Voros product in defining a noncommutative Schwarzschild black hole. The corrected entropy/area-law is then computed in the tunneling formalism. Two types of corrections are considered; one, due to the effects…

高能物理 - 理论 · 物理学 2010-03-26 Rabin Banerjee , Sunandan Gangopadhyay , Sujoy Kumar Modak

We calculate the Komar energy $E$ for a noncommutative Schwarzschild black hole. A deformation from the conventional identity $E=2ST_H$ is found in the next to leading order computation in the noncommutative parameter $\theta$ (i.e.…

高能物理 - 理论 · 物理学 2015-05-19 Rabin Banerjee , Sunandan Gangopadhyay

It has been recently shown in [Phys. Rev. Lett. 125 (2020) 041302] that microstate counting carried out for quantum states residing on the horizon of a black hole leads to a correction of the form $\exp(-A/4l_p^2)$ in the Bekenstein-Hawking…

高能物理 - 理论 · 物理学 2024-05-10 Soham Sen , Ashis Saha , Sunandan Gangopadhyay

We calculate the Komar energy $E$ for a charged black hole inspired by noncommutative geometry and identify the total mass ($M_{0}$) by considering the asymptotic limit. We also found the generalized Smarr formula, which shows a deformation…

广义相对论与量子宇宙学 · 物理学 2012-11-07 Alexis Larranaga , Juan Carlos Jimenez

We calculate the effective Komar conserved quantities for the $N+1$ dimensional charged Myers-Perry spacetime. At the event horizon we derive a new identity $K_{\chi^{\mu}}=2ST$ where the left hand side is the Komar conserved quantity…

广义相对论与量子宇宙学 · 物理学 2010-12-23 Rabin Banerjee , Bibhas Ranjan Majhi , Sujoy Kumar Modak , Saurav Samanta

It is known that, in the noncommutative Schwarzschild black hole spacetime, the point-like object is replaced by the smeared object, whose mass density is described by a Gaussian distribution of minimal width $\sqrt{\theta}$ with $\theta$…

高能物理 - 理论 · 物理学 2015-03-14 Shao-Wen Wei , Yu-Xiao Liu , Zhen-Hua Zhao , Chun-E Fu

We derive the statistical entropy of the Schwarzschild black hole by considering the asymptotic symmetry algebra near the $\cal{I^{-}}$ boundary of the spacetime at past null infinity. Using a two-dimensional description and the Weyl…

高能物理 - 理论 · 物理学 2009-11-11 Mariano Cadoni

Motivated by the energy dependent metric in gravity's rainbow, we will propose a new kind of energy dependent noncommutative geometry. It will be demonstrated that like gravity's rainbow, this new noncommutative geometry is described by an…

广义相对论与量子宇宙学 · 物理学 2018-01-09 Mir Faizal , R. G. G. Amorim , S. C. Ulhoa

Few years ago, Setare \cite{1} has investigated the Cardy-Verlinde formula of non-commutative black hole obtained by non-commutativity of coordinates. In this paper, we apply the same procedure to a non-commutative black hole obtained by…

综合物理 · 物理学 2014-05-29 G. Abbas

We investigate the behavior of a noncommutative radiating Schwarzschild black hole. It is shown that coordinate noncommutativity cures usual problems encountered in the description of the terminal phase of black hole evaporation. More in…

广义相对论与量子宇宙学 · 物理学 2010-04-06 Piero Nicolini , Anais Smailagic , Euro Spallucci

A version of the Schwarzschild metric to be valid in microphysics is proposed. The source fluid is anisotropic with $p_{r} = -\rho$ and fluctuating tangential pressures. At large distances with respect to the Compton wavelength associated…

广义相对论与量子宇宙学 · 物理学 2017-07-17 Hristu Culetu

In Poincar\'e gauge theory, black hole entropy is defined canonically by the variation of a boundary term $\Gamma_H$, located at horizon. For a class of static and spherically symmetric black holes in vacuum, the explicit formula reads…

广义相对论与量子宇宙学 · 物理学 2022-02-21 Milutin Blagojević , Branislav Cvetković

We use the solutions of the noncommutative Wheeler-De Witt equation arising from a Kantowski-Sachs cosmological model to compute thermodynamic properties of the Schwarzschild black hole. We show that the noncommutativity in the momentum…

广义相对论与量子宇宙学 · 物理学 2013-05-29 C. Bastos , O. Bertolami , N. C. Dias , J. N. Prata

Using a graphical analysis, we show that for the horizon radius $r_h\gtrsim 4.8\sqrt\theta$, the standard semiclassical Bekenstein-Hawking area law for noncommutative Schwarzschild black hole exactly holds for all orders of $\theta$. We…

高能物理 - 理论 · 物理学 2009-04-22 Rabin Banerjee , Bibhas Ranjan Majhi , Sujoy Kumar Modak

Recent work in the literature has studied the quantum-mechanical decay of a Schwarzschild-like black hole, formed by gravitational collapse, into almost-flat space-time and weak radiation at a very late time. The relevant quantum amplitudes…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Elisabetta Di Grezia , Giampiero Esposito , Gennaro Miele

In a recent string theory motivated paper, Nicolini, Smailagic and Spallucci (NSS) presented an interesting model for a noncommutative inspired, Schwarzschild-like black hole solution in 4-dimensions. The essential effect of having…

高能物理 - 唯象学 · 物理学 2009-11-11 Thomas G. Rizzo

We examine the thermodynamic properties of inner and outer horizons in the background of Ho\v{r}ava Lifshitz black hole. We compute the \emph{horizon radii product, the surface area product, the entropy product, the surface temperature…

广义相对论与量子宇宙学 · 物理学 2015-06-11 Parthapratim Pradhan

The first law of black hole mechanics, which relates the change of energy to the change of entropy and other conserved charges, has been the main motivation for probing the thermodynamic properties of black holes. In this work, we…

高能物理 - 理论 · 物理学 2022-01-02 Nelson Hernández Rodríguez , Maria J. Rodriguez
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