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相关论文: A redefinition of Hawking temperature on the event…

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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

The present work deals with four alternative formulation of Bekenstein system on event horizon in $f(R)$ gravity. While thermodynamical laws holds in universe bounded by apparent horizon, these laws break down on event horizon. With…

广义相对论与量子宇宙学 · 物理学 2016-05-27 Jibitesh Dutta , Saugata Mitra , Binod Chetry

In an accelerated expanding universe, one can expect the existence of an event horizon. It may be interesting to study the thermodynamics of the Friedmann-Robertson-Walker (FRW) universe at the event horizon. Considering the usual Hawking…

广义相对论与量子宇宙学 · 物理学 2018-11-06 A. S. Sefiedgar , M. Mirzazadeh

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

Universal thermodynamics for FRW model of the Universe bounded by apparent/event horizon has been considered for massive gravity theory. Assuming Hawking temperature and using the unified first law of thermodynamics on the horizon, modified…

广义相对论与量子宇宙学 · 物理学 2017-02-21 Subhajit Saha , Saugata Mitra , Subenoy Chakraborty

We explore thermodynamics of the apparent horizon in $f(T)$ gravity with both equilibrium and non-equilibrium descriptions. We find the same dual equilibrium/non-equilibrium formulation for $f(T)$ as for $f(R)$ gravity. In particular, we…

广义相对论与量子宇宙学 · 物理学 2015-05-30 Kazuharu Bamba , Chao-Qiang Geng

The paper deals with universal thermodynamics for FRW model of the universe bounded by apparent (or event) horizon. Assuming Hawking temperature on the horizon, the unified first law is examined on the horizon for different gravity…

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

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

The present work is a generalization of the recent work [arXiv: 1206.1420] on the modified Hawking temperature on the event horizon. Here the Hawking temperature is generalized by multiplying the modified Hawking temperature by a variable…

广义相对论与量子宇宙学 · 物理学 2014-04-24 Subenoy Chakraborty

Here we are trying to find the conditions for the validity of the generalized second law of thermodynamics (GSLT) assuming the first law of thermodynamics on the event horizon in both cases when the FRW universe is filled with interacting…

广义相对论与量子宇宙学 · 物理学 2015-05-19 Nairwita Mazumder , Subenoy Chakraborty

In black hole physics, the second law of thermodynamics is generally valid whether the black hole is a static or a non-static one. Considering the universe as a thermodynamical system the second law of black hole dynamics extends to the…

广义相对论与量子宇宙学 · 物理学 2010-11-19 Subenoy Chakraborty , Nairwita Mazumder , Ritabrata Biswas

Here we make an attempt to extend the idea of generalized Hawking temperature and modified Bekenstein entropy at the event horizon in a fractal universe. The modified Hawking temperature and Bekenstein entropy are considered in the…

广义相对论与量子宇宙学 · 物理学 2016-12-02 Sourav Haldar , Jibitesh Dutta , Subenoy Chakraborty

The Friedmann equation in the Friedmann-Robertson-Walker(FRW) universe with any spatial curvature is derived from the first law of thermodynamics on the event horizon. The key idea is to redefine a Hawking temperature on the event horizon.…

高能物理 - 理论 · 物理学 2016-03-08 Fei-Quan Tu , Yi-Xin Chen

In this paper we have examined the validity of the generalized second law of thermodynamics (GSLT) in an expanding Friedmann Robertson Walker (FRW) universe filled with different variants of Chaplygin gases. Assuming that the universe is a…

综合物理 · 物理学 2021-02-19 Samarjit Chakraborty , Sarbari Guha

In blackhole physics, the second law of thermodynamics is generally valid whether the blackhole is a static or a non-static one. Considering the universe as a thermodynamical system the second law of blackhole dynamics extends to the…

广义相对论与量子宇宙学 · 物理学 2011-03-14 Nairwita Mazumder , Subenoy Chakraborty

In this work, we have investigated the validity of the generalized second law of thermodynamics in logamediate and intermediate scenarios of the universe bounded by the Hubble, apparent, particle and event horizons using and without using…

综合物理 · 物理学 2012-01-25 Arundhati Das , Surajit Chattopadhyay , Ujjal Debnath

We explore the validity of the generalized second law (GSL) of thermodynamics in flat FRW universe with apparent horizon and event horizon as the boundary. We found that in a universe with holographic Ricci dark energy and dark matter,…

广义相对论与量子宇宙学 · 物理学 2019-05-13 Titus K Mathew , P. Praseetha

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

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

We investigate the generalized second law (GSL) of thermodynamics in the framework of $f(R)$-gravity. We consider a FRW universe filled only with ordinary matter enclosed by the dynamical apparent horizon with the Hawking temperature. For a…

综合物理 · 物理学 2012-06-05 K. Karami , M. S. Khaledian , N. Abdollahi
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