Results 221 to 230 of about 13,304 (249)
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Entropy, Information, and the Arrow of Time
Journal of Physical Chemistry B, 2010We shall investigate the relationships between the thermodynamic entropy and information theory and the implications that can be drawn for the arrow of time. This demands a careful study of classical thermodynamics and a review of its fundamental concepts.
Irwin Oppenheim
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Arrow of Time, Entropy, and Protein Folding: Holistic View on Biochirality
International Journal of Molecular Sciences, 2022 Chirality is a universal phenomenon, embracing the space–time domains of non-organic and organic nature. The biological time arrow, evident in the aging of proteins and organisms, should be linked to the prevalent biomolecular chirality. This hypothesis drives our exploration of protein aging, in relation to the biological aging of an organism.
Vladimir N Uversky
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Transfer entropy in physical systems and the arrow of time
Physical Review E, 2016Recent developments have cemented the realization that many concepts and quantities in thermodynamics and information theory are shared. In this paper, we consider a highly relevant quantity in information theory and complex systems, the transfer entropy, and explore its thermodynamic role by considering the implications of time reversal upon it.
Richard E Spinney +2 more
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Boltzmann's Entropy and Time's Arrow
Physics Today, 1993Given the success of Ludwig Boltzmann's statistical approach in explaining the observed irreversible behavior of macroscopic systems in a manner consistent with their reversible microscopic dynamics, it is quite surprising that there is still so much confusion about the problem of irreversibility.
Joel L Lebowitz
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Influence of Thermodynamic Arrow of Time on Entropy
Physical Science International Journal, 2023This study assessed the influence of thermodynamic arrow of time on entropy for boiled cooling water (physical process), the universe and the air (natural process). This was done by determining the entropies of boiled water, the universe and air. This was achieved by using 1.5 litres of pure water, a 2 liter electric kettle, a digital thermometer, a ...
Opio Peter, Akullo Lydia, Bwayo Edward
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Entropy, inflation and the arrow of time
Classical and Quantum Gravity, 1991One of the motivations for the introduction of inflation was to explain the large entropy of the observed Universe. Penrose has recently pointed out that the entropy of the observable Universe is small when compared with the maximal possible entropy. The authors show that this phenomenon is also a natural consequence of inflation.
D S Goldwirth, T Piran
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Work fluctuation, entropy, and time’s arrow in time-asymmetric engine cycles
Journal of Physics A: Mathematical and Theoretical, 2020Abstract We derive a thermodynamic uncertainty relation that governs the work yield and the entropy production of an engine operating with a time-asymmetric cycle such as the Carnot cycle. The relation shows an intercorrelation between one engine cycle and its time-reversed cycle, disclosing the role of the time-asymmetry of an engine
Euijin Jeon, Juyeon Yi
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Arrow of time and gravitational entropy in collapse
Classical and Quantum GravityAbstract We investigate the status of the gravitational arrow of time in the case of a spherical collapse of a fluid that conducts heat and radiates energy. In particular, we examine the results obtained by W. B. Bonnor in his 1985 paper where he found that the gravitational arrow of time was opposite to the thermodynamic arrow of time ...
Rituparno Goswami +2 more
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Fractals, Entropy and the Arrow of Time
2016Why can we not move backward in time? According to Relativity, time is just one more dimension like length, width and height where we can go as easily backward as forward. What makes time special? Newton’s laws are symmetric in time and so is even Schrodinger’s equation which controls the happenings at the quantum level.
Mauri Valtonen +5 more
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