Results 61 to 70 of about 56,484 (222)
About some Entropy Aspects of Dissipative Systems [PDF]
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
Vacuum Structure and the Arrow of Time
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+4 more
core +2 more sources
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
The Thermodynamic Arrow-of-time and Quantum Mechanics [PDF]
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
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Thermodynamics of the $$R_{\mathrm{h}}=ct$$ R h = c t Universe: a simplification of cosmic entropy
In the standard model of cosmology, the Universe began its expansion with an anomalously low entropy, which then grew dramatically to much larger values consistent with the physical conditions at decoupling, roughly 380,000 years after the Big Bang ...
Fulvio Melia
doaj +1 more source
Can the Arrow of Time be understood from Quantum Cosmology?
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+15 more
core +1 more source
Entropic Dynamics, Time and Quantum Theory [PDF]
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+32 more
core +1 more source
Machine learning the thermodynamic arrow of time [PDF]
The asymmetry in the flow of events that is expressed by the phrase ‘time’s arrow’ traces back to the second law of thermodynamics. In the microscopic regime, fluctuations prevent us from discerning the direction of time’s arrow with certainty.
Alireza Seif, M. Hafezi, C. Jarzynski
semanticscholar +1 more source
Irreversibility and the arrow of time in a quenched quantum system [PDF]
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.+6 more
core +2 more sources
In this article, we tested optimal SNP filtering strategies for accurate parentage assignment and pedigree reconstruction for a wild population of red‐spotted masu salmon, Oncorhynchus masou ishikawae. We found that mid‐point filtering in terms of call rate and minor allele frequency performs well for pedigree reconstruction.
Shohei Noda+6 more
wiley +1 more source