A Study of Generalized Second Law of Thermodynamics in Magnetic Universe in the light of Non-Linear Electrodynamics
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In this article, the authors considered the magnetic universe in non-linear electrodynamics and discussed the validity of the generalized second law of thermodynamics of magnetic universe bounded by Hubble, apparent, particle and event horizons.About:
This article is published in Physics Letters B.The article was published on 2011-10-13 and is currently open access. It has received 22 citations till now. The article focuses on the topics: Hubble volume & Particle horizon.read more
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Nonlinear electrodynamics in f ( T ) gravity and generalized second law of thermodynamics
Muhammad Sharif,Shamaila Rani +1 more
TL;DR: In this paper, the generalized second law of thermodynamics holds for all values of z with Hubble and event horizons in pole-like scale factor whereas for power-law form, it holds in a specific range of z for both horizons.
Journal ArticleDOI
Thermodynamics of the Bardeen Regular Black Hole
TL;DR: The thermodynamic properties of the Bardeen regular black hole with respect to their respective horizons were studied in this article, where it was shown that the expression of the heat capacity at horizons is positive in one parameter region and negative in the other.
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Thermodynamics with corrected entropies in f(G) gravity
Muhammad Sharif,H. Ismat Fatima +1 more
TL;DR: In this paper, the generalized second law of thermodynamics for the flat FRW universe model in modified Gauss-Bonnet gravity was studied for both present and future epochs but violates in the past era for power-law entropy with and without quantum corrections, while this law is valid for the whole range of redshift z for logarithmic corrected entropy.
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Thermodynamics of Gauss-Bonnet brane with modified Chaplygin gas
TL;DR: In this paper, the generalized second law of thermodynamics in the braneworld scenario with induced gravity and curvature correction terms is discussed and a dark energy component has been chosen on the 3-brane in the form of Modified Chaplygin Gas together with a perfect fluid as the dark matter.
Journal ArticleDOI
Stability of the accelerated expansion in nonlinear electrodynamics
Muhammad Sharif,Saadia Mumtaz +1 more
TL;DR: The phase space analysis of an isotropic and homogeneous model of the universe by taking a noninteracting mixture of the electromagnetic and viscous radiating fluids whose viscous pressure satisfies a nonlinear version of the Israel-Stewart transport equation was studied in this article.
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.
Book
The Early Universe
Edward W. Kolb,Michael S. Turner +1 more
TL;DR: In this article, the Robertson-Walker Metric is used to measure the radius of the Planck Epoch in the expanding universe, which is a measure of the number of atoms in the universe.
Journal ArticleDOI
On gauge invariance and vacuum polarization
TL;DR: In this paper, it was shown that the extraction of gauge invariants from a formally gauge invariant theory is ensured if one employs methods of solution that involve only gauge covariant quantities.
Journal ArticleDOI
The four laws of black hole mechanics
TL;DR: This article derived expressions for the mass of a stationary axisymmetric solution of the Einstein equations containing a black hole surrounded by matter and for the difference in mass between two neighboring such solutions.
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