Results 251 to 260 of about 69,539 (295)

Entropy, Complexity, and the Arrow of Time

open access: closed, 2019
Thermodynamic Entropy. Statistical Entropy. Order, Entropy and Complexity. Entropy and gravitating systems.
A. Lawrence
openalex   +3 more sources

Vacuum Radiation, Entropy and the Arrow of Time

open access: closed, 2002
The root mean square perturbations on particles produced by vacuum radiation must be limited by the uncertainty principle, i.e., 1/2 1/2 =ħ/2, where 1/2 and 1/2 are the root mean square values of drift in spatial and momentum coordinates. The value 1/2 =(ħt/m) 1/2 , where m is the mass of the particle, can be obtained both from classical SED ...
Jean E. Burns
  +5 more sources

The Arrow of Time, Entropy and the Expansion of the Universe

open access: closed, 1976
Setting aside the guidance of consciousness, we discover a signpost for time in the physical world itself. The signpost is a rather peculiar one, and I would not venture to say that the discovery of the signpost amounts to the same thing as the discovery of an objective ‘going on of time’ in the universe.
A. S. Eddinǵton
openalex   +3 more sources

Fractals, Entropy and the Arrow of Time

open access: closed, 2016
Why 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.
M. J. Valtonen   +5 more
openalex   +3 more sources

Transfer entropy in physical systems and the arrow of time

open access: closedPhysical Review E, 2016
Recent 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
openalex   +4 more sources

Boltzmann's Entropy and Time's Arrow [PDF]

open access: possiblePhysics Today, 1993
Given 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.
openaire   +1 more source

Entropy, Information, and Complexity or Which Aims the Arrow of Time? Scientific Explanation

2021
In this article, we analyze the interrelationships among such notions as entropy, information, complexity, order and chaos and show using the theory of categories how to generalize the second law of thermodynamics as a law of increasing generalized entropy or a general law of complification.
George E. Mikhailovsky   +1 more
openaire   +2 more sources

On the relationship between the Fisher-Frieden-Soffer arrow of time, and the behaviour of the Boltzmann and Kullback entropies

Physics Letters A, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Angelo Plastino   +2 more
openaire   +2 more sources

Macroscopic laws, microscopic dynamics, time's arrow and Boltzmann's entropy

Physica A: Statistical Mechanics and its Applications, 1993
Abstract I discuss Boltzmann's resolution of the apparent paradox: microscopic dynamics are time-symmetric but the behavior of macroscopic objects, composed of microscopic constituents, is time-asymmetric. Noting the great disparity between macroscales and microscales Boltzmann developed a statistical approach which explains the observed macroscopic ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy