Results 101 to 110 of about 2,865,644 (194)

Second law of thermodynamics is ingrained within quantum mechanics

open access: yesResults in Physics, 2018
We show that the second law of thermodynamics is rooted in quantum mechanics, inasmuch as allowing the substitution of the Boltzmann constant k and temperature with respectively the Planck constant and quantum numbers. In particular, we will see that the
Tolga Yarman   +4 more
doaj  

Comment on " Second Law of Thermodynamics without Einstein Relation'', arXiv:2405.17142 [PDF]

open access: yesarXiv
It is argued the the idea of a single temperature-like variable, introduced in [1], which enters a generalized second law for Markovian open system in non-equilibrium environment is not sufficient for a consistent and useful thermodynamic formalism. The origin of the Second Law and ``local temperatures'' in Markovian theory of Quantum Open Systems is ...
arxiv  

Corrections to Friedmann equations inspired by Kaniadakis entropy

open access: yesPhysics Letters B
Adopting the thermodynamics-gravity conjecture, and assuming the entropy associated with the apparent horizon of the Friedmann-Robertson-Walker (FRW) universe has the form of the generalized Kaniadakis entropy, we extract the modified Friedmann equations
Ahmad Sheykhi
doaj  

Investigating the little rip and other future singularities of the universe, and validity of the second law of thermodynamics in F(R) theory

open access: yesIranian Journal of Physics Research, 2015
The future singularities are possible in a universe that is described by F(R) theory. In previous studies the occurrence of the singularities in F(R) theory have been considered by using a special function for the Hubble parameter and calculating the F(R)
M Aghaei Abchouyeh, B Mirza, H Nadi
doaj  

Quantum engine efficiency bound beyond the second law of thermodynamics. [PDF]

open access: yesNat Commun, 2018
Niedenzu W   +4 more
europepmc   +1 more source

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