Results 61 to 70 of about 442,315 (312)

Compatibility of linear-response theory with the second law of thermodynamics and the emergence of negative entropy production rates [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2019
The reliability of physical theories depends on whether they agree with well-established physical laws. In this work, we address the compatibility of the Hamiltonian formulation of linear-response theory with the second law of thermodynamics. In order to
Pierre Nazé, Marcus V. S. Bonança
semanticscholar   +1 more source

Run-and-tumble motion: field theory and entropy production

open access: yes, 2020
22 pages, 6 ...
Garcia-Millan, Rosalba   +1 more
openaire   +2 more sources

Statistical properties of entropy production derived from fluctuation theorems

open access: yes, 2010
Several implications of well-known fluctuation theorems, on the statistical properties of the entropy production, are studied using various approaches. We begin by deriving a tight lower bound on the variance of the entropy production for a given mean of
Harris R J   +6 more
core   +1 more source

Maximum Entropy Production in Climate Theory

open access: yesJournal of the Atmospheric Sciences, 2007
AbstractR. D. Lorenz et al. claim that recent data on Mars and Titan show that planetary atmospheres are in unconstrained states of maximum entropy production (MEP). Their model as it applies to Venus, Earth, Mars, and Titan is reexamined, and it is shown that their claim is not justified.
openaire   +1 more source

Towards a Theory of Entropy Production in the Little and Big Bang [PDF]

open access: yesProgress of Theoretical Physics, 2009
We propose a broadly applicable formalism for the description of coarse grained entropy production in quantum mechanical processes. Our formalism is based on the Husimi transform of the quantum state, which encodes the notion that information about any quantum state is limited by the experimental resolution. We show in two analytically tractable cases (
Kunihiro, Teiji   +3 more
openaire   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Matrix Product States, Random Matrix Theory and the Principle of Maximum Entropy [PDF]

open access: yesCommunications in Mathematical Physics, 2013
Using random matrix techniques and the theory of Matrix Product States we show that reduced density matrices of quantum spin chains have generically maximum entropy.
Collins, Benoit   +2 more
openaire   +5 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Thermodynamic time asymmetry in nonequilibrium fluctuations [PDF]

open access: yes, 2007
We here present the complete analysis of experiments on driven Brownian motion and electric noise in a $RC$ circuit, showing that thermodynamic entropy production can be related to the breaking of time-reversal symmetry in the statistical description of ...
A Petrosyan   +15 more
core   +3 more sources

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