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相关论文: Can Virtual Cosmic Strings Shift the Hawking Tempe…

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It was found that, in an isotropic coordinate system, the tunneling approach brings a factor of 1/2 for the Hawking temperature of a Schwarzschild black hole. In this paper, we address this kind of problem by studying the relation between…

广义相对论与量子宇宙学 · 物理学 2010-01-19 Chikun Ding , Jiliang Jing

By using a massless scalar field we examine the effect of an extra dimension on black hole radiation. Because the equations are coupled, we find that the structure of the fifth dimension (as for membrane and induced-matter theory) affects…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Molin Liu , Hongya Liu , Lixin Xu , Paul S. Wesson

The AdS/CFT correspondence has been tested through the reproduction of standard results. Following this approach, we use the correspondence to obtain the Hawking temperature of a black hole in 1+1 dimensions. Using an auxiliary Liouville…

高能物理 - 理论 · 物理学 2008-04-07 Jorge S. Diaz

It is argued that Hawking radiation has indeed been measured and shown to posses a thermal spectrum, as predicted. This contention is based on three separate legs. The first is that the essential physics of the Hawking process for black…

广义相对论与量子宇宙学 · 物理学 2015-06-18 W. G. Unruh

The Hawking radiation forms the essential basis of the black hole thermodynamics. The black hole thermodynamics denotes a nice correspondence between black hole kinematics and the laws of ordinary thermodynamics, but has been so far…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Hiromi Saida

Hawking radiation would make microscopic black holes evaporate rapidly, which excludes them from many astrophysical considerations. However, it has been argued that the quantum nature of space would alter this behaviour: the temperature of…

广义相对论与量子宇宙学 · 物理学 2021-11-05 Samuel Kováčik

The paper deals with Hawking radiation from a general static black hole due to tunnelling of particle having non-zero mass. Due to complicated calculations, quantum corrections are calculated upto first order. The results are compared with…

广义相对论与量子宇宙学 · 物理学 2012-10-01 Nairwita Mazumder , Ritabrata Biswas , Subenoy Chakraborty

Current theoretical investigations seem to indicate the possibility of observing signatures of short distance physics in the Cosmic Microwave Background spectrum. We try to gain a deeper understanding on why all information about this…

高能物理 - 理论 · 物理学 2009-11-07 Roberto Casadio , Laura Mersini

We investigate the apparent thermality of Hawking radiation in the semi-classical limit of quantum black holes using the mean-field limit of a chiral spin-chain simulator, which models fermions propagating on a black hole space-time in the…

高能物理 - 理论 · 物理学 2026-03-16 Iason A. Sofos , Andrew Hallam , Jiannis K. Pachos

A mechanism is found that explains how matter falling into the future event horizon of a black hole leaves information there, which it sends to the past event horizon, and there it determines how particles are emitted. This way information…

广义相对论与量子宇宙学 · 物理学 2025-01-06 Gerard t Hooft

We study Hawking radiation of Dirac particles with spin-$1/2$ as a tunneling process from Schwarzschild-de Sitter and Reissner-Nordstr\"{o}m-de Sitter black holes in background spacetimes with a spinning cosmic string and a global monopole.…

广义相对论与量子宇宙学 · 物理学 2016-07-06 Kimet Jusufi

We study the temperature of extended objects in string theory. Rotating probe D-branes admit horizons and temperatures a la Unruh effect. We find that the induced metrics on slow rotating probe D1-branes in holographic string solutions…

高能物理 - 理论 · 物理学 2016-08-04 Dariush Kaviani , Amir Esmaeil Mosaffa

In this article, we explore an alternative derivation of Hawking radiation. Instead of the field-theoretic derivation, we have suggested a simpler calculation based on quantum mechanical reflection from a one-dimensional potential. The…

广义相对论与量子宇宙学 · 物理学 2022-10-14 Pritam Nanda , Chiranjeeb Singha , Pabitra Tripathy , Amit Ghosh

We introduce the notion of fluid approximation of a quantum spherical black hole in the context of Loop Quantum Gravity. In this limit, the microstates of the black hole are intertwiners between "large" representations $s_i$ which typically…

广义相对论与量子宇宙学 · 物理学 2017-02-22 Pierre Heidmann , Hongguang Liu , Karim Noui

In this paper, we analyze the Hawking radiation of a kappa-deformed Schwarzchild black hole and obtain the deformed Hawking temperature. For this, we first derive deformed metric for the kappa-spacetime, which in the generic case, is not a…

高能物理 - 理论 · 物理学 2017-05-01 E. Harikumar , N. S. Zuhair

In this paper, we obtain two different static black string solutions by considering as sources axisymmetric dark matter distributions in 3+1 dimensions. These solutions tend asymptotically to the usual static and uncharged black string…

广义相对论与量子宇宙学 · 物理学 2023-05-17 Marcony S. Cunha , G. Alencar , Celio R. Muniz , Valdir B. Bezerra , Horácio S. Vieira

We propose intuitive derivations of the Hawking temperature and the Bekenstein-Hawking entropy of a Schwarzschild black hole.

广义相对论与量子宇宙学 · 物理学 2007-05-23 P. R. Silva

Recently a method has been developed for relating four dimensional Schwarzschild black holes in M-theory to near-extremal black holes in string theory with four charges, using suitably defined ``boosts'' and T-dualities. We show that this…

高能物理 - 理论 · 物理学 2009-10-31 Sumit R. Das , Samir D. Mathur , P. Ramadevi

A local Hawking temperature is derived for any future outer trapping horizon in spherical symmetry, using a Hamilton-Jacobi variant of the Parikh-Wilczek tunneling method. It is given by a dynamical surface gravity as defined geometrically.…

广义相对论与量子宇宙学 · 物理学 2009-02-11 S. A. Hayward , R. Di Criscienzo , M. Nadalini , L. Vanzo , S. Zerbini

The Pulsar timing data from NANOGrav Collaboration has regenerated interest in the possibility of observing stochastic gravitational wave background arising from cosmic strings. In the standard theory, the cosmic string network forms during…

广义相对论与量子宇宙学 · 物理学 2024-05-08 Ajit M. Srivastava