Results 31 to 40 of about 71,617 (299)

The Arrow of Time under Space-Time-Entropy Mapping Model

open access: green
ABSTRACT: This study introduces a discrete Time-Entropy Mapping Model (1)where entropy is defined through multiplicative accumulation , rigorously satisfying entropy increase ΔS>0 while maintaining logarithmic consistency with conventional entropy.
Zou Zhi kai
openalex   +3 more sources

Arrow of time and gravitational entropy in collapse

open access: hybridClassical and Quantum Gravity
Abstract 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 ...
Samarjit Chakraborty   +3 more
openalex   +4 more sources

The maximum entropy ansatz in the absence of a time arrow: fractional pole models [PDF]

open access: green, 2006
The maximum entropy ansatz, as it is often invoked in the context of time-series analysis, suggests the selection of a power spectrum which is consistent with autocorrelation data and corresponds to a random process least predictable from past ...
Tryphon T. Georgiou
openalex   +3 more sources

Gödel's Informational Residue: A Foundational Origin of Entropy and the Arrow of Time

open access: green
This paper reframes Gödel’s incompleteness phenomena as part of a broader structure of irreversible information. It argues that every act of resolving uncertainty—whether in logic, scientific inquiry, or cognition—requires erasing alternative possibilities, and that erasure carries an objective thermodynamic cost.
Kruse, Christopher Grant
  +4 more sources

Is Time’s Asymmetry Related to Irreversible Processes and the Second Law?

open access: yesEntropy, 2023
In this article, we start by describing one of the most characteristic properties of time: “time can never decrease”. From this property, numerous authors have concluded that irreversible processes, that always proceed in one direction, must be related ...
Arieh Ben-Naim
doaj   +1 more source

Entropy and Time

open access: yesEntropy, 2020
The idea that entropy is associated with the “arrow of time” has its roots in Clausius’s statement on the Second Law: “Entropy of the Universe always increases.” However, the explicit association of the entropy with time’s arrow arises from Eddington. In
Arieh Ben-Naim
doaj   +1 more source

Causality Is an Effect, II

open access: yesEntropy, 2021
Causality follows the thermodynamic arrow of time, where the latter is defined by the direction of entropy increase. After a brief review of an earlier version of this article, rooted in classical mechanics, we give a quantum generalization of the ...
Lawrence S. Schulman
doaj   +1 more source

Arrow(s) of Time without a Past Hypothesis [PDF]

open access: yes, 2019
The paper discusses recent proposals by Carroll and Chen, as well as Barbour, Koslowski, and Mercati to explain the (thermodynamic) arrow of time without a Past Hypothesis, i.e., the assumption of a special (low-entropy) initial state of the universe ...
Lazarovici, Dustin, Reichert, Paula
core   +3 more sources

Gravitational Entropy and Inflation

open access: yesEntropy, 2013
The main topic of this paper is a description of the generation of entropy at the end of the inflationary era. As a generalization of the present standard model of the Universe dominated by pressureless dust and a Lorentz invariant vacuum energy (LIVE ...
Øystein Elgarøy, Øyvind Grøn
doaj   +1 more source

Home - About - Disclaimer - Privacy