منابع مشابه
Black Holes, Entropy, and Information
Black holes are a continuing source of mystery. Although their classical properties have been understood since the 1970’s, their quantum properties raise some of the deepest questions in theoretical physics. Some of these questions have recently been answered using string theory. I will review these fundamental questions, and the aspects of string theory needed to answer them. I will then expla...
متن کاملEvaporating black holes and entropy.
We study the Hawking radiation for the geometry of an evaporating 1+1 dimensional black hole. We compute Bogoliubov coefficients and the stress tensor. We use a recent result of Srednicki to estimate the entropy of entanglement produced in the evaporation process, for the 1+1 dimensional hole and for the 3+1 dimensional hole. It is found that the one space dimensional result of Srednicki is the...
متن کاملBlack Holes, Thermodynamics and Entropy
Black holes, thermodynamics and entropy are three topics which both separately and together raise several quite deep and serious questions which need to be addressed. Here an attempt is made to highlight some of these issues and to indicate a possible linkage between the accepted entropy expression for a black hole and the paradox linked to black holes and information loss.
متن کاملEntanglement Entropy of Black Holes
The entanglement entropy is a fundamental quantity, which characterizes the correlations between sub-systems in a larger quantum-mechanical system. For two sub-systems separated by a surface the entanglement entropy is proportional to the area of the surface and depends on the UV cutoff, which regulates the short-distance correlations. The geometrical nature of entanglement-entropy calculation ...
متن کاملEntropy of Lovelock Black Holes
A general formula for the entropy of stationary black holes in Lovelock gravity theories is obtained by integrating the first law of black hole mechanics, which is derived by Hamiltonian methods. The entropy is not simply one quarter of the surface area of the horizon, but also includes a sum of intrinsic curvature invariants integrated over a cross section of the horizon. jacobson@umdhep rcm@h...
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ژورنال
عنوان ژورنال: Astroparticle Physics
سال: 2011
ISSN: 0927-6505
DOI: 10.1016/j.astropartphys.2010.11.003