Results 41 to 50 of about 169,010 (181)

Entropy? Honest!

open access: yesEntropy, 2016
Here we deconstruct, and then in a reasoned way reconstruct, the concept of “entropy of a system”, paying particular attention to where the randomness may be coming from. We start with the core concept of entropy as a count associated with a description;
Tommaso Toffoli
doaj   +1 more source

Minimal Length Effect on Thermodynamics and Weak Cosmic Censorship Conjecture in Anti-de Sitter Black Holes via Charged Particle Absorption

open access: yesAdvances in High Energy Physics, 2020
In this paper, we investigate the minimal length effects on the thermodynamics and weak cosmic censorship conjecture in a RN-AdS black hole via charged particle absorption.
Benrong Mu, Jun Tao, Peng Wang
doaj   +1 more source

Interacting Three Fluid System and Thermodynamics of the Universe Bounded by the Event Horizon [PDF]

open access: yes, 2010
The work deals with the thermodynamics of the universe bounded by the event horizon. The matter in the universe has three constituents namely dark energy, dark matter and radiation in nature and interaction between then is assumed.
A.G. Riess   +53 more
core   +1 more source

Clustering of Galaxies with Dynamical Dark Energy

open access: yes, 2017
In this paper, we study thermodynamics of the cluster of galaxies under the effect of dynamical dark energy. We evaluate the configurational integral for interacting system of galaxies in an expanding universe by including the effects produced by the ...
Faizal, Mir   +3 more
core   +1 more source

Varying c and Particle Horizons [PDF]

open access: yes, 2001
We explore what restrictions may impose the second law of thermodynamics on varying speed of light theories. We find that the attractor scenario solving the flatness problem is consistent with the generalized second law at late time.Comment: Latex file ...
Albrecht   +33 more
core   +3 more sources

The two parts of the second law of thermodynamics

open access: yesRevista Brasileira de Ensino de Física
According to Sommerfeld, the well known Clausius and Kelvin statements of the second law of thermodynamics comprises two parts. The first part includes the Carnot principle that all Carnot engines operating between the same temperatures have the same ...
Mário J. de Oliveira
doaj   +1 more source

Second law of information dynamics

open access: yesAIP Advances, 2022
One of the most powerful laws in physics is the second law of thermodynamics, which states that the entropy of any system remains constant or increases over time.
Melvin M. Vopson, S. Lepadatu
doaj   +1 more source

Thermodynamics in Modified Gravity with Curvature Matter Coupling

open access: yesAdvances in High Energy Physics, 2013
The first and generalized second laws of thermodynamics are studied in f(R,Lm) gravity, a more general modified theory with curvature matter coupling. It is found that one can translate the Friedmann equations to the form of first law accompanied with ...
M. Sharif, M. Zubair
doaj   +1 more source

The Generalized Second Law of Thermodynamics in Cosmology

open access: yes, 2000
A classical and quantum mechanical generalized second law of thermodynamics in cosmology implies constraints on the effective equation of state of the universe in the form of energy conditions, obeyed by many known cosmological solutions, and is ...
A. Biswas   +31 more
core   +2 more sources

Clausius’ Disgregation: A Conceptual Relic that Sheds Light on the Second Law

open access: yesEntropy, 2015
The present work analyzes the cognitive process that led Clausius towards the translation of the Second Law of Thermodynamics into mathematical expressions.
Emilio Marco Pellegrino   +2 more
doaj   +1 more source

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