English
Related papers

Related papers: Cosmological FLRW phase transitions and micro-stru…

200 papers

Kaniadakis ($\kappa$-deformed) statistics is being widely used for describing relativistic systems with non-extensive behavior and/or interactions. It is built upon a one-parameter generalization of the classical Boltzmann-Gibbs-Shannon…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-25 Giuseppe Gaetano Luciano

Thermally activated phenomena in physics and chemistry, such as conformational changes in biomolecules, liquid film rupture, or ferromagnetic field reversal, are often associated with exponentially long transition times described by…

Statistical Mechanics · Physics 2024-09-20 Jingbang Liu , James E. Sprittles , Tobias Grafke

In the framework of spatially flat Friedmann-Lemaitre-Robertson-Walker (FLRW) space-time, we investigate a two-fluid cosmological model where a tachyon scalar field with self-interacting potential and a modified chaplygin gas with…

General Relativity and Quantum Cosmology · Physics 2024-12-25 Goutam Mandal , Sujay Kr. Biswas

First and second laws of black hole thermodynamics are examined at the apparent horizon of FRW spacetime in $f(R,R_{\alpha\beta}R^{\alpha\beta} ,\phi)$ gravity, where $R$, $R_{\alpha\beta}R^{\alpha\beta}$ and $\phi$ are the Ricci scalar,…

General Relativity and Quantum Cosmology · Physics 2016-11-17 M. Zubair , Farzana Kousar , Sebastian Bahamonde

Two issues in the first-order thermodynamics of scalar-tensor (including ``viable'' Horndeski) gravity are elucidated. The application of this new formalism to FLRW cosmology is shown to be fully legitimate and then extended to all Bianchi…

General Relativity and Quantum Cosmology · Physics 2023-07-05 Valerio Faraoni , Julien Houle

We consider the thermodynamics of the Einstein-Power-Yang-Mills AdS black holes in the context of the gauge-gravity duality. Under this framework, the Newton's gravitational constant and the cosmological constant are varied in the system.…

High Energy Physics - Theory · Physics 2023-04-21 Yun-Zhi Du , Huai-Fan Li , Yang Zhang , Xiang-Nan Zhou , Jun-Xin Zhao

In this paper, we study the thermodynamic features of a rotating black hole surrounded by perfect fluid dark matter. We analyze the critical behavior of the black hole by considering the known relationship between pressure and cosmological…

General Relativity and Quantum Cosmology · Physics 2020-04-03 Seyed Hossein Hendi , Azadeh Nemati , Kai Lin , Mubasher Jamil

Thermodynamics unavoidably contains fluctuation theory, expressible in terms of a unique thermodynamic information metric. This metric produces an invariant thermodynamic Riemannian curvature scalar $R$ which, in fluid and spin systems,…

General Relativity and Quantum Cosmology · Physics 2015-06-11 George Ruppeiner

We study the thermodynamics of Einstein-Power-Yang-Mills AdS black holes via the Euclidean path integral method, incorporating appropriate boundary and counterterms. By analyzing unstable timelike and null circular geodesics, we demonstrate…

General Relativity and Quantum Cosmology · Physics 2026-03-04 Karthik R. , Dillirajan D. , K. M. Ajith , Kartheek Hegde , Shreyas Punacha , A. Naveena Kumara

Employing the novel exact dictionary between the laws of extended black hole thermodynamics and the laws of the dual CFT, we study the extended thermodynamics for CFT states that are dual to neutral singly-spinning asymptotically AdS black…

High Energy Physics - Theory · Physics 2023-10-26 Moaathe Belhaj Ahmed , Wan Cong , David Kubiznak , Robert B. Mann , Manus R. Visser

In the study of fluid phases, the Ruppeiner geometry provides novel ways for constructing the phase boundaries (known as the $R$-crossing method) and the Widom line, which is considered by many to be the continuation of the coexistence…

Statistical Mechanics · Physics 2022-11-30 Karlo de Leon , Ian Vega

We explore thermodynamic properties of a new class of Horndeski black holes whose action contains a non-minimal kinetic coupling of a massless real scalar and the Einstein tensor. Our treatment is based on the well-accepted consideration,…

High Energy Physics - Theory · Physics 2016-11-29 Yan-Gang Miao , Zhen-Ming Xu

In the present work, we discuss how the functional form of thermodynamic observables can be deduced from the geometric properties of subsets of phase space. The geometric quantities taken into account are mainly extrinsic curvatures of the…

Statistical Mechanics · Physics 2020-05-01 Ghofrane Bel-Hadj-Aissa , Matteo Gori , Vittorio Penna , Giulio Pettini , Roberto Franzosi

Equations of granular hydrostatics are used to compute the phase diagram of the recently discovered van der Waals-like phase separation in a driven granular gas. The model two-dimensional system consists of smooth hard disks in a…

Soft Condensed Matter · Physics 2009-11-10 Evgeniy Khain , Baruch Meerson , Pavel V. Sasorov

We present a dynamical analysis of the (classical) spatially flat and negative curved Friedmann-Lameitre-Robertson-Walker (FLRW) universes evolving, (by assumption) close to the thermodynamic equilibrium, in presence of a particles creation…

General Relativity and Quantum Cosmology · Physics 2009-11-07 G. Montani

We study the $P-V/r_{+}$ criticality and phase transition of quantum-corrected black hole in asymptotic safety (AS) gravity in the extended phase space. For the black hole, the cosmological constant is dependent on the momentum cutoff or…

High Energy Physics - Theory · Physics 2015-06-19 Meng-Sen Ma , Ya-Qin Ma

The dynamics of typical phase transitions is studied out of equilibrium in weakly coupled inflaton-type scalar field theories in Minkowski space. The shortcomings of the effective potential and equilibrium descriptions are pointed out. A…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Boyanovsky , H. J. de Vega , R. Holman

We present a thermodynamic analysis of spherically symmetric gravitational collapse. Using the Hayward-Kodama formalism, we treat a collapsing sphere as a thermodynamic system and express the surface gravity $\kappa_{hk}$ in terms of the…

General Relativity and Quantum Cosmology · Physics 2025-11-05 Soumya Chakrabarti

The physical properties of Reissner-Nordstrom black holes in (n+1)-dimensional anti-de Sitter spacetime are related, by a holographic map, to the physics of a class of n-dimensional field theories coupled to a background global current.…

High Energy Physics - Theory · Physics 2010-04-06 Andrew Chamblin , Roberto Emparan , Clifford V. Johnson , Robert C. Myers

We subject to scrutiny the physical consistency of adopting the perfect-gas thermodynamic model within self-gravitation circumstances by studying the fluid statics of a self-gravitating isothermal sphere with the van der Waals'…