Results 51 to 60 of about 3,582,030 (360)

Thermodynamics of the Euler-Heisenberg-AdS black hole [PDF]

open access: yes, 2020
We generalize the solution to the Euler-Heisenberg (EH) theory coupled to gravity that represents a nonlinearly charged static black hole (BH) introducing the cosmological constant; the obtained solution is characterized by four parameters: mass $M ...
Daniela Magos, N. Bret'on
semanticscholar   +1 more source

Thermodynamics and Chemistry of the Early Universe [PDF]

open access: yes, 2018
The interplay between chemistry and thermodynamics determines the final outcome of the process of gravitational collapse and sets the conditions for the formation of the first cosmological objects, including primordial supermassive black holes.
Bovino, Stefano, Galli, Daniele
core   +2 more sources

Confinement and the AdS/CFT Correspondence [PDF]

open access: yes, 2000
We study the thermodynamics of the confined and unconfined phases of superconformal Yang-Mills in finite volume and at large N using the AdS/CFT correspondence.
Avis   +17 more
core   +3 more sources

Weinhold geometry and thermodynamics of Bardeen AdS black holes

open access: yesNuclear Physics B, 2022
Thermodynamics of Bardeen AdS black holes has attracted a great deal of attentions due to its intrinsic complications and rich phase structures. However, the entropy and thermodynamic volume are incorrect in some literatures. In this paper we revisit the
Yang Guo, Yan-Gang Miao
doaj  

Defining the pressures of a fluid in a nanoporous, heterogeneous medium

open access: yesFrontiers in Physics, 2022
We describe the thermodynamic state of a single-phase fluid confined to a porous medium with Hill’s thermodynamics of small systems, also known as nanothermodynamics.
Olav Galteland   +4 more
doaj   +1 more source

A New Thermodynamically Compatible Finite Volume Scheme for Magnetohydrodynamics

open access: yesSIAM Journal on Numerical Analysis, 2023
In this paper we propose a novel thermodynamically compatible finite volume scheme for the numerical solution of the equations of magnetohydrodynamics (MHD) in one and two space dimensions. As shown by Godunov in 1972, the MHD system can be written as overdetermined symmetric hyperbolic and thermodynamically compatible (SHTC) system.
Busto, S, Dumbser, M
openaire   +2 more sources

A New Entropy Function to Analyze Isentropic Processes of Ideal Gases with Variable Specific Heats

open access: yesEntropy, 2022
A new entropy function s+ is defined in terms of the existing entropy function s° and temperature as s+ = s° − R lnT to facilitate the analysis of isentropic processes of ideal gases with variable specific heats. The function s+ also makes it possible to
Yunus A. Çengel, Mehmet Kanoğlu
doaj   +1 more source

Analysis of the thermomechanical inconsistency of some extended hydrodynamic models at high Knudsen number [PDF]

open access: yes, 2012
There are some hydrodynamic equations that, while their parent kinetic equation satisfies fundamental mechanical properties, appear themselves to violate mechanical or thermodynamic properties.
B. V. Alexeev   +9 more
core   +2 more sources

Thermodynamics and Van der Waals phase transition of charged black holes in flat spacetime via Rényi statistics [PDF]

open access: yes, 2020
The phase structure and critical phenomena of the $3+1$ dimensional charged black holes in asymptotically flat spacetime are investigated within the R\'enyi statistics. As the nonextensive parameter $\ensuremath{\lambda}$ above zero, a charged black hole
Chatchai Promsiri   +2 more
semanticscholar   +1 more source

Extended phase space thermodynamics for black holes in a cavity [PDF]

open access: yesJournal of High Energy Physics, 2020
In this paper, we extend the phase space of black holes enclosed by a spherical cavity of radius rB to include V=4πrB3/3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy}
Peng Wang   +3 more
semanticscholar   +1 more source

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