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We reconstruct the $\Lambda$CDM model for $f(T,\mathcal{T})$ Theory, where $T$ is the torsion scalar and $\mathcal{T}$ the trace of the energy-momentum tensor. The result shows that the action of $\Lambda$CDM is a combination of a linear…

General Relativity and Quantum Cosmology · Physics 2016-05-19 Ednaldo L. B. Junior , Manuel E. Rodrigues , Ines G. Salako , Mahouton J. S. Houndjo

The thermodynamic properties of dark energy-dominated universe in the presence of a black hole are investigated in the general case of a varying equation-of-state-parameter $w(a)$. We show that all the thermodynamics quantities are regular…

General Relativity and Quantum Cosmology · Physics 2015-03-14 Khireddine Nouicer

In this work, we investigate the thermodynamic and the stability of the regular Hayward black hole surrounded by quintessence. Using the metric of the black hole surrounded by quintessence and the new approach of the holographic principle,…

General Relativity and Quantum Cosmology · Physics 2020-07-29 Kamiko Kouemeni Jean Rodrigue , Mahamat Saleh , Bouetou Bouetou Thomas , Timoleon Crepin Kofane

We study the thermodynamic properties associated with the black hole event horizon and the cosmological horizon for black hole solutions in asymptotically de Sitter spacetimes. We examine thermodynamics of these horizons on the basis of the…

High Energy Physics - Theory · Physics 2007-05-23 Yuichi Sekiwa

This paper investigates charged black holes within the framework of quintic quasi-topological gravity, focusing on their thermodynamics, conserved quantities, and stability. We construct numerical solutions and explore their thermodynamic…

General Relativity and Quantum Cosmology · Physics 2023-12-05 A. R. Olamaei , A. Bazrafshan , M. Ghanaatian

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…

General Relativity and Quantum Cosmology · Physics 2015-06-22 Ramon Herrera , Nelson Videla

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…

General Relativity and Quantum Cosmology · Physics 2011-02-09 Nairwita Mazumder , Subenoy Chakraborty

The non-relativistic self-gravitating gas in thermal equilibrium in the presence of a positive cosmological constant Lambda (dark energy) is investigated. The dark energy introduces a force pushing outward all particles with strength…

Astrophysics · Physics 2009-11-07 H. J. de Vega , J. A. Siebert

We investigate the interaction between dark energy and dark matter in the framework of irreversible thermodynamics of open systems with matter creation/annihilation. We consider dark energy and dark matter as an interacting two component…

General Relativity and Quantum Cosmology · Physics 2013-02-08 Tiberiu Harko , Francisco S. N. Lobo

The present work deals with irreversible Universal thermodynamics. The homogenous and isotropic flat model of the universe is chosen as open thermodynamical system and non-equilibrium thermodynamics comes into picture due to the mechanism…

General Relativity and Quantum Cosmology · Physics 2016-05-17 Subhajit Saha , Atreyee Biswas , Subenoy Chakraborty

This thesis is devoted to properties of quark matter at high density and (comparatively) low temperature, which might exist in the interior of compact stars. The specific heat and the quark self energy in normal quark matter are discussed…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andreas Gerhold

In this talk I will firstly review on the current constraints on the equation of state of the dark energy from observational data, then present a new scenario of dark energy dubbed {\it Quintom}. The recent fits to the type Ia supernova…

High Energy Physics - Phenomenology · Physics 2016-09-06 Xinmin Zhang

In this paper we apply the exact solution of the sine-Gordon model to describe thermodynamic properties of the soliton liquid in the incommensurate phase of the double-layer quantum Hall systems. In this way we include thermal fluctuations…

Strongly Correlated Electrons · Physics 2009-11-07 Emiliano Papa , Alexei Tsvelik

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…

General Relativity and Quantum Cosmology · Physics 2015-06-18 Ramon Herrera

A scalar-tensor theory of gravity is formulated in which $G$ and particle masses are allowed to vary. The theory yields a globally static cosmological model with no evolutionary timescales, no cosmological coincidences, and no flatness and…

General Physics · Physics 2015-10-01 Meir Shimon

Systems at finite temperature make up the vast majority of realistic physical scenarios. Indeed, although zero temperature is often accompanied by simpler mathematics, the richness in physical results is evident when one considers the…

General Relativity and Quantum Cosmology · Physics 2020-05-29 Gonçalo M. Quinta

In this work we study the evolution of a spatially flat Universe by considering a viscous dark matter and perfect fluids for dark energy and radiation, including an interaction term between dark matter and dark energy. In the first part, we…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-18 A. Hernández-Almada , Miguel A. García-Aspeitia , Juan Magaña , V. Motta

We calculate the Feynman propagator at finite temperature in an Einstein universe for a neutral massive scalar field arbitrarily coupled to the Ricci curvature. Then, the propagator is used to determine the mean square fluctuation, the…

General Relativity and Quantum Cosmology · Physics 2026-05-07 E. S. Moreira , J. P. A. Paula

In this work, we scrutinize the thermodynamic properties of the Simpson-Visser (SV) spacetime. Working within Einstein gravity coupled to nonlinear electrodynamics (NLED) and a scalar field with negative kinetic energy, we rederive the…

General Relativity and Quantum Cosmology · Physics 2026-03-17 Thanasis Karakasis , Emmanuel N. Saridakis , Zi-Yu Tang

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…

General Relativity and Quantum Cosmology · Physics 2024-03-01 Mohammad Beigmohammadi , Kayoomars Karami
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