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相关论文: Noncommutativity and logarithmic correction to the…

200 篇论文

In this paper, we use the holographic principle to obtain a modified metric of black holes that reproduces the exponentially corrected entropy. The exponential correction of the black hole entropy comes from non-perturbative corrections. It…

广义相对论与量子宇宙学 · 物理学 2024-03-14 Behnam Pourhassan , Hoda Farahani , Farideh Kazemian , İzzet Sakallı , Sudhaker Upadhyay , Dharm Veer Singh

It has been known for many years that the leading correction to the black hole entropy is a logarithmic term, which is universal and closely related to conformal anomaly. A fully consistent analysis of this issue has to take quantum…

广义相对论与量子宇宙学 · 物理学 2022-02-23 Yong Xiao , Yu Tian

We calculate the statistical entropy of a quantum field with an arbitrary spin propagating on the spherical symmetric black hole background by using the brick wall formalism at higher orders in the WKB approximation. For general spins, we…

高能物理 - 理论 · 物理学 2013-05-16 Wontae Kim , Shailesh Kulkarni

We calculate the logarithmic correction to the entropy of asymptotically flat and AdS black holes (rotating, non-rotating, charged, and uncharged) embedded in Einstein-Maxwell-dilaton (EMD) theories with $U(1)$-charged. The leading quantum…

高能物理 - 理论 · 物理学 2023-03-08 Sudip Karan , Gurmeet Singh Punia

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 determine the corrections to the entropy of extremal black holes arising from terms quadratic in the Riemann tensor in $N=2, D=4$ supergravity theories. We follow Wald's proposal to modify the Bekenstein-Hawking area law. The new entropy…

高能物理 - 理论 · 物理学 2015-06-26 Gabriel Lopes Cardoso , Bernard de Wit , Thomas Mohaupt

In this paper we consider the generalized uncertainty principle in the tunneling formalism via Hamilton-Jacobi method to determine the quantum-corrected Hawking temperature and entropy for 2+1-dimensional noncommutative acoustic black…

高能物理 - 理论 · 物理学 2015-02-03 M. A. Anacleto , F. A. Brito , G. C. Luna , E. Passos , J. Spinelly

We calculate leading long-distance noncommutative corrections to the classical Schwarzschild black hole which is sourced by a massive noncommutative scalar field. The energy-momentum tensor is taken up to ${\cal O}(\ell^4)$ in…

广义相对论与量子宇宙学 · 物理学 2009-09-02 Archil Kobakhidze

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…

高能物理 - 理论 · 物理学 2025-03-20 B. Hamil , B. C. Lütfüoğlu

Quantum effects due to conformal matter in a black hole background result in universal logarithmic corrections to black-hole entropy. The universality resides in the connection of the log term coefficient with those of type-A and type-B…

广义相对论与量子宇宙学 · 物理学 2015-06-16 R Aros , D E Diaz , A Montecinos

We obtain new solutions of Einsteinian cubic gravity coupled to a Maxwell field that describe the near-horizon geometry of charged and rotating black holes. We show that the AdS$_2\times\mathbb{S}^2$ near-horizon geometry of…

高能物理 - 理论 · 物理学 2020-02-19 Pablo A. Cano , David Pereñiguez

We compute the logarithmic correction to the entropy of asymptotically AdS$_4$ black holes in minimal ${\cal N}=2$ gauged supergravity. We show that for extremal black holes the logarithmic correction computed in the near horizon geometry…

高能物理 - 理论 · 物理学 2023-11-29 Marina David , Victor Godet , Zhihan Liu , Leopoldo A. Pando Zayas

In this work, we present a new construction of black hole solutions in non-commutative gauge theory by applying the Seiberg-Witten map directly to interaction potentials before solving Einstein's equations. This approach provides a…

高能物理 - 理论 · 物理学 2026-05-25 Abdellah Touati

We study the gravitational perturbation theory of black holes in noncommutative spacetimes with noncommutativity of the type $[t\stackrel{\star}{,} r] = i a \alpha A(r)$ and $[\varphi \stackrel{\star}{,} r] = i a \beta A(r)$ for arbitrary…

广义相对论与量子宇宙学 · 物理学 2026-03-03 Nikola Herceg , Tajron Jurić , A. Naveena Kumara , Andjelo Samsarov , Ivica Smolić

Starting from an effective action for quantum gravity, we calculate the quantum gravitational corrections to the Wald entropy of a four dimensional non-extremal Reissner-Nordstr\"om (RN) black hole in the limit of small electric charge,…

高能物理 - 理论 · 物理学 2023-05-23 Ruben Campos Delgado

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…

高能物理 - 理论 · 物理学 2009-11-11 Elisabetta Di Grezia , Giampiero Esposito , Gennaro Miele

We extend the study of corrected thermodynamics for the 3D black holes conformally coupled to scalar field up to non-perturbative level. We calculate the exponential correction to entropy arises due to the microstate counting for quantum…

广义相对论与量子宇宙学 · 物理学 2024-04-17 Saheb Soroushfar , Hoda Farahani , Sudhaker Upadhyay

Thermodynamic Riemannian geometry provides great insights into the microscopic structure of black holes (BHs). One such example is the Ruppeiner geometry which is the metric space comprising the second derivatives of entropy with respect to…

广义相对论与量子宇宙学 · 物理学 2025-04-15 Syed Masood A. S. Bukhari , Behnam Pourhassan , Houcine Aounallah , Li-Gang Wang

The leading quantum-gravitational correction to the black hole entropy is known to be a universal logarithmic term. In this study, we investigate the logarithmic corrections for the black holes in the STU supergravity models, which are a…

高能物理 - 理论 · 物理学 2025-03-26 Sudip Karan , Gurmeet Singh Punia , Surajit Biswas

In this work, starting by simple, approximate (quasi-classical) methods presented in our previous works, we suggest a simple determination of the (logarithmic) corrections of (Schwarzschild) black hole entropy "without knowing the details…

广义相对论与量子宇宙学 · 物理学 2008-10-07 Vladan Pankovic , Simo Ciganovic , Jovan Ivanovic