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相关论文: Horizon thermodynamics in holographic cosmological…

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Applying Clausius relation with energy-supply defined by the unified first law of thermodynamics formalism to the apparent horizon of a massive cosmological model proposed lately, the corrected entropic formula of the apparent horizon is…

广义相对论与量子宇宙学 · 物理学 2013-04-19 Hui Li , Yi Zhang

We investigate the thermodynamic and phenomenological implications of a cosmological model governed by fractional entropy applied to the apparent horizon of a flat Friedmann-Lema\^{i}tre-Robertson-Walker (FLRW) universe. By utilizing the…

广义相对论与量子宇宙学 · 物理学 2026-04-21 Miguel Cruz , Diego da Silva , Simón González , Samuel Lepe , Joel Saavedra , Manuel Gonzalez-Espinoza

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

To clarify a holographic modified thermodynamic relation, the present study applies a general formulation for cosmological equations in a flat FLRW universe to the first law of thermodynamics, using the Bekenstein-Hawking entropy…

广义相对论与量子宇宙学 · 物理学 2025-01-22 Nobuyoshi Komatsu

Recently, we have investigated the dynamics of the universe in tachyon cosmology with non-minimal coupling to matter \cite{faraj}-\cite{faraj3}. In particular, for the interacting holographic dark energy (IHDE), the model is studied in…

广义相对论与量子宇宙学 · 物理学 2016-07-26 H. Farajollahi , A. Ravanpak , M. Abolghasemi

Holographic dark energy cosmology, also known as entropic cosmology, provides a concrete physical understanding of the late accelerated expansion of the universe. The acceleration appears to be a consequence of entropy associated with…

广义相对论与量子宇宙学 · 物理学 2024-06-03 Facundo Abaca , Dario Javier Zamora

In this letter we explore the foundations of entropic cosmology and highlight some important flaws which have emerged and adopted in the recent literature. We argue that, when applying entropy and temperature on the cosmological horizon by…

广义相对论与量子宇宙学 · 物理学 2024-03-25 Hussain Gohar , Vincenzo Salzano

In this paper we have considered the holographic dark energy and studied it's cosmology and thermodynamics. We have analysed the generalized second law (GSL) of thermodynamics in a flat universe consists of interacting dark energy and dark…

广义相对论与量子宇宙学 · 物理学 2014-02-03 Praseetha P. , Titus K. Mathew

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

The thermal history of a large class of running vacuum models in which the effective cosmological term is described by a truncated power series of the Hubble rate, whose dominant term is $\Lambda (H) \propto H^{n+2}$, is discussed in…

广义相对论与量子宇宙学 · 物理学 2016-04-29 J. A. S. Lima , Spyros Basilakos , Joan Solà

A study of Universal thermodynamics is done in Lanczos-Lovelock gravity. The Universe is chosen as FRW model bounded by apparent or event horizon. The unified first law is examined, assuming extended Hawking temperature on the horizon. As a…

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

Using the first law of thermodynamics, we propose a relation between the system entropy ($S$) and its IR ($L$) and UV ($\Lambda$) cutoffs. In addition, applying this relation to the apparent horizon of flat FRW universe, whose entropy meets…

综合物理 · 物理学 2018-10-18 H. Moradpour , S. A. Moosavi , I. P. Lobo , J. P. Morais Graça , A. Jawad , I. G. Salako

We investigate the laws of thermodynamics in an accelerating universe driven by dark energy with a time-dependent equation of state. In the case we consider that the physically relevant part of the Universe is that envelopped by the…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Bin Wang , Yungui Gong , Elcio Abdalla

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

We have investigated the thermodynamical properties of the Universe with dark energy. Adopting the usual assumption in deriving the constant co-moving entropy density that the physical volume and the temperature are independent, we observed…

广义相对论与量子宇宙学 · 物理学 2010-10-27 Yungui Gong , Bin Wang , Anzhong Wang

This paper is devoted to study the generalized second law of thermodynamics in $f(T)$ gravity. We use quantum corrections such as power-law and logarithmic corrected entropies to the horizon entropy along with Gibbs' equation in the thermal…

广义相对论与量子宇宙学 · 物理学 2014-12-17 M. Sharif , Shamaila Rani

Motivated by the notion that the mathematics of gravity can be reproduced from a statistical requirement of maximal entropy, we study the consequence of introducing an entropic source term in the Einstein-Hilbert action. For a spatially…

广义相对论与量子宇宙学 · 物理学 2024-03-20 Soumya Chakrabarti

Our Universe is expected to finally approach a de Sitter universe whose horizon is considered to be in thermal equilibrium. In the present article, both the energy stored on the horizon and its thermodynamic fluctuations are examined…

广义相对论与量子宇宙学 · 物理学 2022-02-25 Nobuyoshi Komatsu

We consider a cosmological horizon, named thermo-horizon, to which are associated a temperature and an entropy of Bekenstein-Hawking and which obeys the first law for an energy flow calculated through the corresponding limit surface. We…

高能物理 - 理论 · 物理学 2008-11-26 Cécile Barbachoux , Jérome Gariel , Gérard Le Denmat

Homogeneous and isotropic, nonsingular, bouncing world models are designed to evade the initial singularity at the beginning of the cosmic expansion. Here, we study the thermodynamics of the subset of these models governed by general…

广义相对论与量子宇宙学 · 物理学 2016-03-09 Pedro C. Ferreira , Diego Pavon