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相关论文: Generalized second law of thermodynamics in Gauss-…

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We investigate the validity of the generalized second law of thermodynamics on the $(n-1)$-dimensional brane embedded in the $(n+1)$-dimensional bulk. We examine the evolution of the apparent horizon entropy extracted through relation…

高能物理 - 理论 · 物理学 2010-05-12 Ahmad Sheykhi , Bin Wang

We disclose the deep connection between the thermodynamics and gravity in a general braneworld model with curvature correction terms on the brane and in the bulk, respectively. We show that the Friedmann equations on the 3-brane embedded in…

高能物理 - 理论 · 物理学 2008-11-26 Ahmad Sheykhi , Bin Wang , Rong-Gen Cai

We investigate the validity of the generalized second law of thermodynamics, applying Barrow entropy for the horizon entropy. The former arises from the fact that the black-hole surface may be deformed due to quantum-gravitational effects,…

广义相对论与量子宇宙学 · 物理学 2021-09-16 Emmanuel N. Saridakis , Spyros Basilakos

In this paper, we examine the validity of the generalized second law of thermodynamics (GSLT) of the universe bounded by the event horizon in brane-world gravity. Here we consider homogeneous and isotropic model of the universe filled with…

广义相对论与量子宇宙学 · 物理学 2011-02-09 Nairwita Mazumder , Subenoy Chakraborty

Using the corrected entropy-area relation motivated by the loop quantum gravity, we investigate the validity of the generalized second law of thermodynamics in the framework of modified FRW cosmology. We consider a non-flat universe filled…

广义相对论与量子宇宙学 · 物理学 2011-04-21 K. Karami , A. Sheykhi , N. Sahraei , S. Ghaffari

Starting from the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparent horizon of a FRW universe, and assuming that the associated entropy with apparent horizon has a quantum corrected relation, $S=\frac{A}{4G}-\alpha \ln…

高能物理 - 理论 · 物理学 2011-02-09 Ahmad Sheykhi

In this paper we first obtain Friedmann equations for the $(n-1)$-dimensional brane embedded in the $(n+1)$-dimensional bulk, with intrinsic curvature term of the brane included in the action (DGP model). Then, we show that one can always…

高能物理 - 理论 · 物理学 2008-11-26 Ahmad Sheykhi , Bin Wang , Rong-Gen Cai

We investigate the unified first law and the generalized second law in a modified holographic dark energy model. The thermodynamical analysis on the apparent horizon can work and the corresponding entropy formula is extracted from the…

广义相对论与量子宇宙学 · 物理学 2015-06-19 Hui Li , Yi Zhang

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

A study of Universal thermodynamics is done in the frame work of RSII brane model and DGP brane scenario. The Universe is chosen as FRW model bounded by apparent or event horizon. Assuming extended Hawking temperature on the horizon, the…

广义相对论与量子宇宙学 · 物理学 2016-05-17 Saugata Mitra , Subhajit Saha , Subenoy Chakraborty

Using the generalized procedure proposed by \emph{Wu et al}\cite{wu} recently, we construct the first law of thermodynamics on apparent horizon in a general braneworld model with curvature correction terms on the brane and in the bulk,…

广义相对论与量子宇宙学 · 物理学 2010-01-07 Tao Zhu , Ji-Rong Ren , Shu-Fan Mo

We show that for an RSII braneworld filled with interacting viscous dark energy and dark matter, one can always rewrite the Friedmann equation in the form of the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparent horizon. In…

综合物理 · 物理学 2015-05-27 M. R. Setare , A. Sheykhi

We investigate the validity of the generalized second law of gravitational thermodynamics on the apparent and event horizons in a non-flat FRW universe containing the interacting dark energy with dark matter. We show that for the dynamical…

广义相对论与量子宇宙学 · 物理学 2011-01-18 K. Karami , S. Ghaffari , M. M. Soltanzadeh

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 investigate the validity of the generalized second law of thermodynamics in a universe governed by Horava-Lifshitz gravity. Under the equilibrium assumption, that is in the late-time cosmological regime, we calculate separately the…

高能物理 - 理论 · 物理学 2011-03-28 Mubasher Jamil , Emmanuel N. Saridakis , M. R. Setare

We show that in the accelerating universe the generalized second law of thermodynamics holds only in the case where the enveloping surface is the apparent horizon, but not in the case of the event horizon. The present analysis relies on the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Jia Zhou , Bin Wang , Yungui Gong , Elcio Abdalla

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 consider a spatially flat Friedmann-Lemaitre-Robertson-Walker space time and investigate the second law and the generalized second law of thermodynamics for apparent horizon in generalized modified Gauss Bonnet theory of gravity (whose…

广义相对论与量子宇宙学 · 物理学 2011-01-17 H. Mohseni Sadjadi

In this paper, we investigate the validity of the generalized second law of thermodynamics (GSLT) in the DGP brane world when universe is filled with interacting two fluid system: one in the form of cold dark matter and other is holographic…

广义相对论与量子宇宙学 · 物理学 2015-05-11 Jibitesh Dutta , Subenoy Chakraborty

By employing the general expression of temperature $T_{h}=|\kappa|/2\pi = \frac{1}{2\pi \tilde{r}_{A}}(1-\frac{\dot{\tilde{r}}_{A}}{2H\tilde{r}_{A}})$ associated with the apparent horizon of a FRW universe and assuming a region of FRW…

广义相对论与量子宇宙学 · 物理学 2009-09-28 M. Akbar
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