The generalized second law of thermodynamics in the accelerating universe
TLDR
In this paper, it was shown that the generalized second law of thermodynamics holds only in the case where the enveloping surface is the apparent horizon, but not in case of the event horizon.About:
This article is published in Physics Letters B.The article was published on 2007-08-23 and is currently open access. It has received 134 citations till now. The article focuses on the topics: Apparent horizon & Event horizon.read more
Citations
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Thermodynamics of interacting holographic dark energy with the apparent horizon as an IR cutoff
TL;DR: In this article, the Friedmann equation is expressed in the form of the modified first law of thermodynamics, dE = ThdSh + WdV, at the apparent horizon.
Journal ArticleDOI
Thermodynamics of cosmological horizons in f (t) gravity
TL;DR: In this article, the authors explore the thermodynamics of the apparent horizon in f(T) gravity with both equilibrium and non-equilibrium descriptions, and show that the second law of thermodynamics can be satisfied for the universe with the same temperature outside and inside the visible horizon.
Journal ArticleDOI
Generalized second law of thermodynamics in f(T)-gravity
TL;DR: In this article, the validity of the generalized second law (GSL) of gravitational thermodynamics in the framework of f(T) modified teleparallel gravity was investigated in a spatially flat FRW universe.
Journal ArticleDOI
Generalized Vaidya spacetime in Lovelock gravity and thermodynamics on the apparent horizon
TL;DR: In this paper, a generalized Vaidya solution in a generic Lovelock gravity was proposed, which generalizes the simple case in Gauss-Bonnet gravity reported recently by some authors.
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Thermodynamics in F(R) gravity with phantom crossing
Kazuharu Bamba,Chao-Qiang Geng +1 more
TL;DR: In this article, the second law of thermodynamics of the apparent horizon in F(R) gravity was studied in the effective phantom phase as well as non-phantom one.
References
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Particle Creation by Black Holes
TL;DR: In this article, it is shown that quantum mechanical effects cause black holes to create and emit particles as if they were hot bodies with temperature, which leads to a slow decrease in the mass of the black hole and to its eventual disappearance.
Journal ArticleDOI
Black holes and entropy
TL;DR: In this paper, the concept of black-hole entropy was introduced as a measure of information about a black hole interior which is inaccessible to an exterior observer, and it was shown that the entropy is equal to the ratio of the black hole area to the square of the Planck length times a dimensionless constant of order unity.
Journal ArticleDOI
Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
Wendy L. Freedman,Barry F. Madore,Barry F. Madore,Brad K. Gibson,Laura Ferrarese,Daniel D. Kelson,Shoko Sakai,Jeremy Mould,Robert C. Kennicutt,Holland C. Ford,John A. Graham,John P. Huchra,Shaun M. G. Hughes,Garth D. Illingworth,Lucas M. Macri,Peter B. Stetson +15 more
TL;DR: In this paper, the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant are presented, and the results are based on a Cepheid calibration of several secondary distance methods applied over the range of about 60-400 Mpc.
Journal ArticleDOI
Cosmological Event Horizons, Thermodynamics, and Particle Creation
TL;DR: In this article, it was shown that the relationship between event horizons and thermodynamics can be extended to cosmological models with a repulsive cosmology constant, and that the spacetime metric itself appears to be observer-dependent.
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