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相关论文: Geometric and thermodynamic properties in Gauss-Bo…

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In this paper, the generalized second law (GSL) of thermodynamics and entropy is revisited in the context of cosmological models with bouncing behavior such as chameleon cosmology where the boundary of the universe is assumed to be enclosed…

广义相对论与量子宇宙学 · 物理学 2015-05-28 H. Farajollahi , A. Salehi , F. Tayebi

We study the generalized second law (GSL) of thermodynamics in $f(T)$ cosmology. We consider the universe as a closed bounded system filled with $n$ component fluids in the thermal equilibrium with the cosmological boundary. We use two…

综合物理 · 物理学 2013-02-25 Kazuharu Bamba , Mubasher Jamil , D. Momeni , Ratbay Myrzakulov

Modified gravity and generalized second law (GSL) of thermodynamics are interesting topics in the modern cosmology. In this regard, we investigate the GSL of gravitational thermodynamics in the framework of modified Gauss-Bonnet gravity or…

广义相对论与量子宇宙学 · 物理学 2016-11-22 A. Abdolmaleki , T. Najafi

This work is to study the generalized second law (GSL) of thermodynamics in tachyon cosmology where the boundary of the universe is assumed to be enclosed by a dynamical apparent horizon. The model is constrained with the observational…

广义相对论与量子宇宙学 · 物理学 2016-06-08 H. Farajollahi , A. Ravanpak , H. Shojaie , M. Abolghasemi

We examine the validity of the generalized second law (GSL) of gravitational thermodynamics in the context of interacting $f(R)$ gravity. We take into account that the boundary of the universe to be confined by the dynamical apparent…

广义相对论与量子宇宙学 · 物理学 2015-06-22 Ramon Herrera , Nelson Videla

Within the context of scalar-tensor gravity, we explore the generalized second law (GSL) of gravitational thermodynamics. We extend the action of ordinary scalar-tensor gravity theory to the case in which there is a non-minimal coupling…

广义相对论与量子宇宙学 · 物理学 2014-05-27 A. Abdolmaleki , T. Najafi , K. Karami

We have considered that the universe is the inhomogeneous $(n+2)$ dimensional quasi-spherical Szekeres space-time model. We consider the universe as a thermodynamical system with the horizon surface as a boundary of the system. To study the…

广义相对论与量子宇宙学 · 物理学 2011-04-20 Ujjal Debnath

The second law and the generalized second law of thermodynamics in cosmology in the framework of the modified Gauss-Bonnet theory of gravity are investigated. The conditions upon which these laws hold are derived and discussed.

广义相对论与量子宇宙学 · 物理学 2011-05-27 H. Mohseni Sadjadi

We study the validity of the generalized second law (GSL) of gravitational thermodynamics in a non-flat FRW universe containing the interacting in $f(T)$ gravity. We consider that the boundary of the universe to be confined by the dynamical…

广义相对论与量子宇宙学 · 物理学 2015-06-18 Ramon Herrera

Here, we study the generalized second law (GSL) of thermodynamics in the framework of massive gravity. To do this, we consider a FRW universe filled only with matter and enclosed by the apparent horizon. In addition, we consider two models…

广义相对论与量子宇宙学 · 物理学 2024-03-01 Mohammad Beigmohammadi , Kayoomars Karami

The present work deals with a detailed study of universal thermodynamics in different modified gravity theories. The validity of the generalized second law of thermodynamics (GSLT) and thermodynamical equilibrium (TE) of the Universe…

广义相对论与量子宇宙学 · 物理学 2016-11-02 Saugata Mitra , Subhajit Saha , Subenoy Chakraborty

This paper explores the non-equilibrium behavior of thermodynamics at the apparent horizon of isotropic and homogeneous universe model in $f(\mathcal{G},T)$ gravity ($\mathcal{G}$ and $T$ represent the Gauss-Bonnet invariant and trace of…

广义相对论与量子宇宙学 · 物理学 2018-03-13 M. Sharif , Ayesha Ikram

Late-time cosmic acceleration has motivated the exploration of various extensions of general relativity, among which $f(Q,\mathcal{T})$ gravity, based on the non-metricity scalar $Q$ and the trace of the energy--momentum tensor…

广义相对论与量子宇宙学 · 物理学 2026-04-29 Anirudh Pradhan , A. Husain , M. Zeyauddin , S. H. Shekh

We investigate the generalized second law of thermodynamics (GSL) in generalized theories of gravity. We examine the total entropy evolution with time including the horizon entropy, the non-equilibrium entropy production, and the entropy of…

高能物理 - 理论 · 物理学 2008-12-18 Shao-Feng Wu , Bin Wang , Guo-Hong Yang , Peng-Ming Zhang

We present a study of the generalized second law of thermodynamics in the scope of the f(R,T) theory of gravity, with R and T representing the Ricci scalar and trace of the energy-momentum tensor, respectively. From the energy-momentum…

广义相对论与量子宇宙学 · 物理学 2018-10-09 D. Momeni , P. H. R. S. Moraes , R. Myrzakulov

An equilibrium picture of thermodynamics is discussed at the apparent horizon of FRW universe in $f(T,T_G)$ gravity, where $T$ represents the torsion invariant and $T_G$ is the teleparallel equivalent of the Gauss-Bonnet term. It is found…

广义相对论与量子宇宙学 · 物理学 2015-11-04 M. Zubair

In the previous analyses in the literature about the generalized second law (GSL) in an accelerated expanding universe the usual area relation for the entropy, i.e. $S={A\over 4G}$, was used for the cosmological horizon entropy. But this…

广义相对论与量子宇宙学 · 物理学 2011-01-14 H. Mohseni Sadjadi , Mubasher Jamil

The present study is elaborated to investigate the validity of thermodynamical laws in a modified teleparallel gravity based on higher-order derivatives terms of torsion scalar. For this purpose, we consider spatially flat FRW model filled…

综合物理 · 物理学 2019-06-07 Saira Waheed , M. Zubair

In this paper, we investigate the validity of the generalized second law (GSL) of thermodynamics in flat FRW chameleon cosmology where the boundary of the universe is assumed to be enclosed by the dynamical apparent horizon. It has been…

广义相对论与量子宇宙学 · 物理学 2015-05-28 H. Farajollahi , A. Salehi , F. Tayebi

We present a conjugate analysis of two different dark energy models investigating both their agreement with recent data and their thermodynamical properties. The successful match with the data allows to both constrain the model parameters…

宇宙学与河外天体物理 · 物理学 2017-10-11 Vincenzo F. Cardone , Ninfa Radicella , Antonio Troisi
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