Results 61 to 70 of about 68,867 (287)

Green and Kubo forge the arrow of time [PDF]

Molecular Physics
Transport theory describes the response of a macroscopic current to a thermodynamic force, thus producing entropy and apparently violating time-reversal symmetry.
Stefano Baroni
semanticscholar   +1 more source

About some Entropy Aspects of Dissipative Systems [PDF]

Theoretical and Applied Economics, 2006
This paper is aspiring to get a logical explanation on the entropy velocity (i.e. on the entropy acceleration) in a Universe “endowed” with a dissipative system.
Emil Dinga
doaj   +1 more source

Fidelity Mechanics: Analogues of the Four Thermodynamic Laws and Landauer’s Principle

Entropy, 2022
Fidelity mechanics is formalized as a framework for investigating critical phenomena in quantum many-body systems. Fidelity temperature is introduced for quantifying quantum fluctuations, which, together with fidelity entropy and fidelity internal energy,
Huan-Qiang Zhou, Qian-Qian Shi, Yan-Wei Dai   +2 more
doaj   +1 more source

Vacuum Structure and the Arrow of Time

, 2012
We find ourselves in an extended era of entropy production. Unlike most other observations, the arrow of time is usually regarded as a constraint on initial conditions. I argue, however, that it primarily constrains the vacuum structure of the theory.
A. Linde, J. D. Barrow, J. D. Bekenstein, Raphael Bousso, W. Fischler   +4 more
core   +2 more sources

A quantum solution to the arrow-of-time dilemma [PDF]

, 2008
The arrow of time dilemma: the laws of physics are invariant for time inversion, whereas the familiar phenomena we see everyday are not (i.e. entropy increases).
A. Peres, D. Z. Albert, D. Z. Albert, E. Borel, E. P. Gyftopoulos, F. Reif, H. Price, H. D. Zeh, J. Loschmidt, L. Szilard, L. S. Schulman, Lorenzo Maccone, P. C. W. Davies, R. Landauer, R. Penrose, T. Gold, W. H. Zurek   +16 more
core   +2 more sources

Defining Arrow of Time at The Start of Inflation Using Traditional Cosmology Initially as an Example and Finally Penrose Cyclic Conformal Cosmology with Singular versus Nonsingular Starting Points?

, 2021
We first of all define the arrow of time. Definition of the arrow of time will allow choosing different initial starting points. One of the issues we will also discuss is the interconnection between the arrow of time, entropy and quantum information ...
A. Beckwith
semanticscholar   +1 more source

Entropic Dynamics, Time and Quantum Theory [PDF]

, 2011
Quantum mechanics is derived as an application of the method of maximum entropy. No appeal is made to any underlying classical action principle whether deterministic or stochastic.
't Hooft G G, Adler S L, Adler S L, Ariel Caticha, Barbour J, Barbour J, Barbour J, Bohm D, Brukner C, Brukner C Zukowski M Zeilinger A, Caticha A, Caticha A, Caticha A, Caticha A, Caticha A, Caticha A, Fritsche L Haugk M, Fuchs C, Goyal P, Hall M J W, Hardy L, Jaynes E T, Jaynes E T, Jaynes E T, Nelson E, Olavo L S F, Pauli W, Pauli W, Price H, Smolin L, Smolin L, Wheeler J A, Zeh H D   +32 more
core   +1 more source

The Thermodynamic Arrow-of-time and Quantum Mechanics [PDF]

, 2011
I give an explanation of the thermodynamic arrow-of-time (namely entropy increases with time) within a quantum mechanical framework. This entails giving a solution to the Loschmidt paradox, i.e. showing how an irreversible macro-dynamics can arise from a
Maccone, Lorenzo
core   +1 more source

Can the Arrow of Time be understood from Quantum Cosmology?

, 2009
I address the question whether the origin of the observed arrow of time can be derived from quantum cosmology. After a general discussion of entropy in cosmology and some numerical estimates, I give a brief introduction into quantum geometrodynamics and ...
A. Simone, A.A. Starobinsky, B.S. DeWitt, C. Kiefer, C. Kiefer, C. Kiefer, C. Kiefer, C.A. Egan, G. Hinshaw, G.W. Gibbons, H.D. Zeh, J.J. Halliwell, M. Albers, M. Novello, R. Holman, R. Penrose   +15 more
core   +1 more source

Irreversibility and the arrow of time in a quenched quantum system [PDF]

, 2015
Irreversibility is one of the most intriguing concepts in physics. While microscopic physical laws are perfectly reversible, macroscopic average behavior has a preferred direction of time. According to the second law of thermodynamics, this arrow of time
Batalhao, T. B., Lutz, E., Oliveira, I. S., Paternostro, M., Sarthour, R. S., Serra, R. M., Souza, A. M.   +6 more
core   +2 more sources