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Related papers: Schwarzschild Black Hole in Noncommutative Spaces

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The absence of a true thermodynamical equilibrium for an observer located in the causal area of a Schwarzschild-de Sitter spacetime has repeatedly raised the question of the correct definition of its temperature. In this work, we consider…

High Energy Physics - Theory · Physics 2017-08-02 Panagiota Kanti , Thomas Pappas

By considering particles as smeared objects, we investigate the effects of space noncommutativity on the geodesic structure in Schwarzschild-AdS spacetime. By means of a detailed analysis of the corresponding effective potentials for…

General Relativity and Quantum Cosmology · Physics 2011-10-05 Alexis Larranaga

We study the thermodynamics of black holes in the framework of non-commutative geometry, where spacetime fuzziness is modelled by smeared Lorentzian distributions. Corrected black hole solutions with this quantum fuzziness are obtained, and…

High Energy Physics - Theory · Physics 2025-09-30 Ankit Anand , Anshul Mishra , Aditya Singh

This paper investigates the influence of non-commutative geometry on various aspects of neutrino behavior in curved spacetime. Adopting a Schwarzschild-like black hole solution with Lorentzian mass deformation induced by non-commutativity,…

General Relativity and Quantum Cosmology · Physics 2025-04-08 A. A. Araújo Filho , N. Heidari , Yuxuan Shi

Using a noncommutative inspired Einstein-Euler-Heisenberg black hole, we analyse the associated graviton and light rings that together with the event horizon, provide the necessary components to build its shadow. An analysis of the angular…

General Relativity and Quantum Cosmology · Physics 2021-10-27 Marco Maceda , Alfredo Macías , Daniel Martínez-Carbajal

We investigate the transition behavior of the two-level atom as the Unruh-DeWitt detector outside a noncommutative black hole. When the mass of the black hole is small enough, the difference between the commutative and noncommutative black…

High Energy Physics - Theory · Physics 2023-12-29 Jingran Shi , Yipeng Liu , Baocheng Zhang

We study the thermodynamic phase transition of a quantum-corrected Schwarzschild black hole. The modified metric affects the critical temperature which is slightly less than the conventional one. The space without black holes is not the hot…

General Relativity and Quantum Cosmology · Physics 2013-02-15 Wontae Kim , Yongwan Kim

Using the Schwarzschild metric as a rudimentary toy model, we pedagogically revisit the curious prediction that the mass of a classical black hole in a constant temperature thermal bath diverges in a finite amount of time. We study in…

General Relativity and Quantum Cosmology · Physics 2022-07-27 Aurélien Barrau , Killian Martineau , Cyril Renevey

We study a black hole with a blurred mass density instead of a singular one, which is caused by the noncommutativity of 3-space. Depending on its mass, such object has either none, one or two event horizons. It possesses properties, which…

General Relativity and Quantum Cosmology · Physics 2017-08-31 Samuel Kováčik

The Hawking temperature for Schwarzschild black hole $T_H=1/8\pi M$ is singular in the limit of vanishing mass $M\to 0$. However, the Schwarzschild metric itself is regular in this limit, it is reduced to the Minkowski metric and there are…

High Energy Physics - Theory · Physics 2021-04-27 Irina Aref'eva , Igor Volovich

There are several well-established methods for computing thermodynamics in single-horizon spacetimes. However, understanding thermodynamics becomes particularly important when dealing with spacetimes with multiple horizons. Multiple…

General Relativity and Quantum Cosmology · Physics 2023-09-29 Chiranjeeb Singha , Pritam Nanda , Pabitra Tripathy

Parikh and Wilczek have shown that Hawking radiation's spectrum cannot be strictly thermal. Such a non-strictly thermal character implies that the spectrum is also not strictly continuous and thus generates a natural correspondence between…

General Relativity and Quantum Cosmology · Physics 2012-10-30 Christian Corda

We analyze the effects of noncommutativity on phantom Reissner-Nordstr\"om-Anti-de Sitter black holes by modeling mass and charge distributions with Lorentzian profiles. The modified metric function exhibits significant deviations from the…

High Energy Physics - Theory · Physics 2025-03-20 B. Hamil , B. C. Lütfüoğlu

We study a novel phenomena of smearing of black hole horizons from the effect of space noncommutativity. We present an explicit example in $AdS_3$ space, using the Chern-Simons formulation of gravity. This produces a smeared BTZ black hole…

High Energy Physics - Theory · Physics 2010-02-03 Hyeong-Chan Kim , Mu-In Park , Chaiho Rim , Jae Hyung Yee

It is shown that the surface gravity and temperature of a stationary black hole are invariant under conformal transformations of the metric that are the identity at infinity. More precisely, we find a conformal invariant definition of the…

General Relativity and Quantum Cosmology · Physics 2010-04-06 Ted Jacobson , Gungwon Kang

In this article we analyze the behavior of a non-relativistic spinless particle near the event horizon of a Schwarzschild-like black hole. In this way, the Schr\"odinger covariant equation that describes the particle is obtained from the…

General Relativity and Quantum Cosmology · Physics 2023-12-12 Ronni Amorim , Vinicius Rispoli , Sérgio Ulhoa , Kayo Araújo

The merging of quantum information science with the relativity theory presents novel opportunities for understanding the enigmas surrounding the transmission of information in relation to black holes. For this purpose, we study the…

General Relativity and Quantum Cosmology · Physics 2024-01-23 S. Haddadi , M. A. Yurischev , M. Y. Abd-Rabbou , M. Azizi , M. R. Pourkarimi , M. Ghominejad

Recent work in the literature has studied a version of non-commutative Schwarzschild black holes where the effects of non-commutativity are described by a mass function depending on both the radial variable r and a non-commutativity…

High Energy Physics - Theory · Physics 2008-11-26 Elisabetta Di Grezia , Giampiero Esposito , Gennaro Miele

In the present article, we study the Hawking effect and the bounds on greybody factor in a spacetime with radial deformation. This deformation is expected to carry the imprint of a non-Einsteinian theory of gravity, but shares some of the…

General Relativity and Quantum Cosmology · Physics 2023-01-11 Subhajit Barman , Sajal Mukherjee

In this work, we propose a new black hole solution, namely, a Hayward-like metric incorporating corrections due to non-commutativity by taking into account $\partial_r\wedge\partial_\theta$ Moyal twist. We begin by deriving this solution…

General Relativity and Quantum Cosmology · Physics 2025-09-18 N. Heidari , A. A. Araújo Filho , Iarley P. Lobo
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