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相关论文: Noncommutative SUSY Black Holes

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The analog of the Schwarzschild metric is explored in the context of Non-Singular Gravity. Analytic results are developed describing redshifts, curvatures and topological features of the spacetime. All curvatures and redshifts are finite so…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Neil Cornish

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

The Wheeler-DeWitt (WDW) equation for the Kantowski-Sachs model can also be understood as the WDW-equation corresponding to the Schwarzschild black hole due to the well known diffeomorphism between these two metrics. The WDW-equation and…

高能物理 - 理论 · 物理学 2010-02-24 J. C. López-Domínguez , O. Obregón , S. Zacarías

The Wheeler-DeWitt equation arising from a Kantowski-Sachs model is considered for a Schwarzschild black hole under the assumption that the scale factors and the associated momenta satisfy a noncanonical noncommutative extension of the…

高能物理 - 理论 · 物理学 2011-02-23 Catarina Bastos , Orfeu Bertolami , Nuno Costa Dias , João Nuno Prata

This work aims to implement the idea of noncommutativity in the subject of black holes. Its principal contents deal with a study of Schwarzschild black holes in a D-dimensional noncommutative space. Various aspects related to the non…

高能物理 - 理论 · 物理学 2012-01-13 M. Chabab , H. El Moumni , M. B. Sedra

In this paper we construct a non-commutative gauge theory for the deformed metric corresponding to the modified structure of a gravitational field in the case of Yukawa-Schwarzschild non-commutative space-time. The thermodynamic properties…

广义相对论与量子宇宙学 · 物理学 2022-06-15 Slimane Zaim , Hadjar Rezki

In this paper we study noncommutative black holes. We use a diffeomorphism between the Schwarzschild black hole and the Kantowski-Sachs cosmological model, which is generalized to noncommutative minisuperspace. Through the use of the…

高能物理 - 理论 · 物理学 2009-11-11 J. C. Lopez-Dominguez , O. Obregon , C. Ramirez , M. Sabido

We derive the form of the metric for static, nonsingular black holes with a de Sitter core, representing a deformation of the Schwarzschild solution, by assuming that the gravitational sources describe a flow between two conformal points,…

广义相对论与量子宇宙学 · 物理学 2023-06-30 Mariano Cadoni , Andrea Pierfrancesco Sanna

We consider a cosmological model based upon a non-canonical noncommutative extension of the Heisenberg-Weyl algebra to address the thermodynamical stability and the singularity problem of both the Schwarzschild and the Kantowski-Sachs black…

高能物理 - 理论 · 物理学 2011-07-08 Catarina Bastos , Orfeu Bertolami , Nuno Costa Dias , João Nuno Prata

We consider the canonical quantisation of spherically symmetric spacetimes within unimodular gravity, leaving sign choices in the metric general enough to include both the interior and exterior Schwarzschild-(Anti-)de Sitter spacetime. In…

高能物理 - 理论 · 物理学 2025-06-12 Steffen Gielen , Sofie Ried

A phase-space noncommutativity in the context of a Kantowski-Sachs cosmological model is considered to study the interior of a Schwarzschild black hole. Due to the divergence of the probability of finding the black hole at the singularity…

高能物理 - 理论 · 物理学 2011-09-28 C. Bastos , O. Bertolami , N. C. Dias , J. N. Prata

We investigate the quasinormal modes of a massless scalar field in a Schwarzschild black hole, which is deformed due to noncommutative corrections. We introduce the deformed Schwarzschild black hole solution, which depends on the…

广义相对论与量子宇宙学 · 物理学 2024-05-20 Y. Zhao , Yifu Cai , S. Das , G. Lambiase , E. N. Saridakis , E. C. Vagenas

The singularities present at the centre of black holes signal a break down of the classical theory. In this paper, we demonstrate a resolution of the Schwarzschild-(Anti-)de Sitter singularity by imposing unitary evolution with respect to…

广义相对论与量子宇宙学 · 物理学 2025-08-29 Sofie Ried

The metric of arbitrary dimensional Schwarzschild black hole in the background of Friedman-Robertson-Walker universe is presented in the cosmic coordinates system. In particular, the arbitrary dimensional Schwarzschild-de Sitter metric is…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Chang Jun Gao

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

Deformed Reissner-Nordstr\"om, as well as Reissner-Nordstr\"om de Sitter, solutions are obtained in a noncommutative gauge theory of gravitation. The gauge potentials (tetrad fields) and the components of deformed metric are calculated to…

高能物理 - 理论 · 物理学 2008-11-26 M. Chaichian , M. R. Setare , A. Tureanu , G. Zet

In this work, by a novel approach to studying the scattering of a Schwarzschild black hole, the non-commutativity is introduced as a perturbation. We begin by reformulating the Klein-Gordon equation for the scalar field in a new form that…

广义相对论与量子宇宙学 · 物理学 2024-06-07 N. Heidari , H. Hassanabadi , A. A. Araújo Filho , J. Kuríuz

We examine the behavior of non-commutative Schwarzschild black holes in the context of massive gravity. According to the investigation, corresponding to a minimal mass, the black hole can have two horizons, one horizon, or no horizon at…

广义相对论与量子宇宙学 · 物理学 2024-04-17 Piyali Bhar , Dhruba Jyoti Gogoi , Supakchai Ponglertsakul

In order to find a noncommutative analog of Schwarzschild or Schhwarzschild-de Sitter blackhole we investigate spherically symmetric spaces generated by four noncommutative coordinates in the frame formalism. We present two solutions which…

高能物理 - 理论 · 物理学 2008-12-18 Maja Buric , John Madore

We construct a deformed adS-Einstein-Born-Infeld black hole from noncommutative gauge theory of gravity and determine the metric coefficients up to second order on the noncommutative parameter. We analyse the modifications on the…

高能物理 - 理论 · 物理学 2020-02-12 Román Linares , Marco Maceda , Oscar Sánchez-Santos
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