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In completely local settings, we establish that a dynamically evolving black hole horizon can be assigned a Hawking temperature. Moreover, we calculate the Hawking flux and show that the radius of the horizon shrinks.

广义相对论与量子宇宙学 · 物理学 2015-06-04 Ayan Chatterjee , Bhramar Chatterjee , Amit Ghosh

An interesting case of string/black hole transition occurs in two-dimensional non-critical string theory dressed with a compact CFT. In these models the high energy densities of states of perturbative strings and black holes have the same…

高能物理 - 理论 · 物理学 2008-11-26 Andrei Parnachev , David A. Sahakyan

We find a new black hole in three dimensional anti-de Sitter space by introducing an anisotropic perfect fluid inspired by the noncommutative black hole. This is a regular black hole with two horizons. We compare thermodynamics of this…

广义相对论与量子宇宙学 · 物理学 2009-07-24 Yun Soo Myung , Myungseok Yoon

Nonrotating and rotating black hole soltuions in (2+1) dimensions are studied in a model including a real scalar field with a simple potential coupled to gravity.

广义相对论与量子宇宙学 · 物理学 2007-05-23 Yoshitaka Degura , Kenji Sakamoto , Kiyoshi Shiraishi

Local and non-local properties of Hawking radiation in the presence of short distance dispersion are computed using connection formulae. The robustness of the spectrum and that of the two-point function are explained by showing that the…

高能物理 - 理论 · 物理学 2012-02-03 Antonin Coutant , Renaud Parentani , Stefano Finazzi

We investigate the time evolution of the temperature and entropy of a gravitationally collapsing cylinder, represented by an infinitely thin domain wall, as seen by an asymptotic observer. Previous work has shown that the entropy of a…

广义相对论与量子宇宙学 · 物理学 2011-06-14 Evan Halstead , Peng Hao

Hawking radiation from Unruh's and Canonical acoustic black hole is considered from viewpoint of anomaly cancellation method developed by Robinson and Wilczek. Thus, the physics near the horizon can be described using an infinite collection…

广义相对论与量子宇宙学 · 物理学 2009-08-13 Ramon Becar , Pablo Gonzalez , Gustavo Pulgar , Joel Saavedra

We present the thermodynamics of a charged and rotating BTZ black holes here. In particular, we derive expressions for various macroscopic thermal quantities such as entropy, Hawking temperature, Helmholtz free energy, internal energy,…

广义相对论与量子宇宙学 · 物理学 2022-02-01 Sudhaker Upadhyay , Nadeem-ul-islam , Prince A. Ganai

Charged massive scalar fields are studied in the gravitational, electromagnetic, dilaton, and axion fields of rotating linear dilaton black holes. In this geometry, we separate the covariant Klein-Gordon equation into radial and angular…

广义相对论与量子宇宙学 · 物理学 2017-09-07 I. Sakalli

Recently, Hawking radiation from a Schwarzschild-type black hole via gravitational anomaly at the horizon has been derived by Robinson and Wilczek. Their result shows that, in order to demand general coordinate covariance at the quantum…

高能物理 - 理论 · 物理学 2014-11-18 Qing-Quan Jiang , Shuang-Qing Wu , Xu Cai

We present a new class of spinning black hole solutions in $(2+1)$-dimensional general relativity minimally coupled to a dilaton with potential $e^{b\phi}\Lambda$. When $b=4$, the corresponding spinning black hole is a solution of low…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Kevin C. K. Chan , Robert B. Mann

In both flat and curved spacetimes, there are weak and strong versions of the anti-Unruh/anti-Hawking effects, in which the KMS field temperature is anti-correlated with the response of a detector and its inferred temperature. We…

广义相对论与量子宇宙学 · 物理学 2022-08-31 Matthew P. G. Robbins , Robert B. Mann

It has been recently shown that the contribution between the horizons determines the Hawking temperature for a multi-horizon spacetime. In this article, we apply the Hamiltonian Jacobi method to compute the Hawking temperature for some…

广义相对论与量子宇宙学 · 物理学 2023-05-02 Chiranjeeb Singha , Pritam Nanda , Pabitra Tripathy

We examine an Unruh-DeWitt particle detector coupled to a scalar field in three-dimensional curved spacetime, within first-order perturbation theory. We first obtain a causal and manifestly regular expression for the instantaneous…

广义相对论与量子宇宙学 · 物理学 2012-08-27 Lee Hodgkinson , Jorma Louko

In this paper we study the first law of thermodynamics for the (2+1) dimensional BTZ rotating black hole considering a pair of thermodinamical systems constructed with the two horizons of this solution. We show that these two systems are…

广义相对论与量子宇宙学 · 物理学 2007-10-09 Alexis Larranaga

We extend the derivation of the Hawking temperature of a Schwarzschild black hole via the Heisenberg uncertainty principle to the de Sitter and anti-de Sitter spacetimes. The thermodynamics of the Schwarzschild-(anti-)de Sitter black holes…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Brett Bolen , Marco Cavaglia

Here we analyze the Hawking radiation detected by an inertial observer in an arbitrary position in a Reissner-Nordstr\"om spacetime, with special emphasis on the asymptotic behavior of the Hawking spectrum as an observer approaches the…

广义相对论与量子宇宙学 · 物理学 2023-04-14 Tyler McMaken , Andrew J. S. Hamilton

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 address the problem of the thermalization process for an Unruh-DeWitt (UDW) detector outside a BTZ black hole, from a perspective of quantum thermodynamics. In the context of an open quantum system, we derive the complete dynamics of the…

高能物理 - 理论 · 物理学 2025-07-23 Wenjing Chen , Yixuan Ma , Si-Wei Han , Zihao Wang , Jun Feng

We discuss in detail the semiclassical approximation for the CGHS model of two-dimensional dilatonic black holes. This is achieved by a formal expansion of the full Wheeler-DeWitt equation and the momentum constraint in powers of the…

高能物理 - 理论 · 物理学 2016-09-06 J. -G. Demers , C. Kiefer