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A Computer's Arrow of Time [PDF]

open access: yesEntropy, 2005
: Some researchers believe that the psychological or consciousness arrow of time is a consequence of the thermodynamic arrow. Some don't. As for many issues in this area, the disagreement revolves about fundamental and undebatable assumptions.
L. S. Schulman
doaj   +5 more sources

Modeling the Arrows of Time with Causal Multibaker Maps

open access: yesEntropy
Why do we remember the past, and plan the future? We introduce a toy model in which to investigate emergent time asymmetries: the causal multibaker maps. These are reversible discrete-time dynamical systems with configurable causal interactions. Imposing
Aram Ebtekar, Marcus Hutter
doaj   +4 more sources

Algebraical Entropy and Arrow of Time [PDF]

open access: yesEntropy, 2022
Usually, it is supposed that irreversibility of time appears only in macrophysics. Here, we attempt to introduce the microphysical arrow of time assuming that at a fundamental level nature could be non-associative.
Merab Gogberashvili
doaj   +2 more sources

Supernovae and the Arrow of Time

open access: yesEntropy, 2022
Supernovae are explosions of stars and are a central problem in astrophysics. Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities develop during the star’s explosion and lead to intense interfacial RT/RM mixing of the star materials.
Snezhana I. Abarzhi   +4 more
doaj   +3 more sources

Remarks on the Compatibility of Opposite Arrows of Time

open access: yesEntropy, 2005
: I argue that opposite arrows of time, while being logically possible, cannot realistically be assumed to exist during one and the same epoch of our universe.
H. D. Zeh
doaj   +3 more sources

Remarks on the Compatibility of Opposite Arrows of Time II

open access: yesEntropy, 2006
In a series of papers [1,2,3], Lawrence Schulman presented examples which demonstrate the compatibility of opposite arrows of time in various situations.
H. D. Zeh
doaj   +3 more sources

String theory and the arrow of time

open access: yesJournal of High Energy Physics, 2021
Time-like linear dilaton triggers, at the classical level, the creation of closed folded strings at an instant. We show that in cosmology these instant folded strings induce negative pressure at no energy cost.
Nissan Itzhaki
doaj   +1 more source

Time, the Arrow of Time, and Quantum Mechanics

open access: yesFrontiers in Physics, 2018
It is brought forward that viable theories of the physical world that have no variable at all that can play the role of time, do not exist; some notion of time is one of the very first ingredients a candidate theory should possess.
Gerard 't Hooft
doaj   +1 more source

Epistemological Suggestions in „Entropy Low and Economic Process” [PDF]

open access: yesTheoretical and Applied Economics, 2006
The paper is aimed to derive, on criticism basis (following, especially, the critic rationalism, as method), epistemological suggestions from the crucial work of Nicholas Georgescu-Roegen, “The Entropy Law and the Economic Process”, in order to these ...
Emil Dinga, Cornel Ionescu
doaj   +1 more source

Hydrophobic Mesoporous Silica-Coated Solid-Phase Microextraction Arrow System for the Determination of Six Biogenic Amines in Pork and Fish

open access: yesFoods, 2023
In this study, a functionalized mesoporous silica-coated solid-phase microextraction (SPME) Arrow system was developed for the enrichment of six biogenic amines (BAs) from pork and fish samples before gas chromatographic separation with a mass ...
Mengfei Chen   +3 more
doaj   +1 more source

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