Results 21 to 30 of about 731,597 (291)

The arrow of time in Parkinson’s disease

NeuroImage: Clinical
Background: Parkinson’s disease (PD) is a system-level disorder that implicates brain network dynamics across multiple scales. Detecting the ‘arrow of time’, or temporal reversibility of the brain’s information processing flow enables quantification of ...
Fatemeh Sadeghi, Elvira del Agua Banyeres, Alessandra Pizzuti, Abdullah Okar, Kai Grimm, Christian Gerloff, Morten L. Kringelbach, Rainer Goebel, Simone Zittel, Gustavo Deco   +9 more
doaj   +5 more sources

Entropy and Time

Entropy, 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   +2 more sources

Arrow of Time in Quantum Mechanics and Set Theory

Entropy
The set-theory twist of quantum mechanics uncovers forcing in axiomatic Zermelo–Fraenkel set theory as a viable tool to understand the singularities in a physical spacetime and serves as a link between the quantum and classical worlds. The random forcing
Jerzy Król
doaj   +2 more sources

Demystifying Arrow of Time

SSRN Electronic Journal
Scientific discussions of the arrow of time often get quite confusing due to highly complex systems they deal with. Popular literature then often coveys messages that tend to get lost in translation. The purpose of this note is to demystify the arrow of time by stripping off the unnecessary complexities and thereby simplifying the discussion.
Kakushadze, Zura
openaire   +3 more sources

On the statistical arrow of time

, 2023
What is the physical origin for the arrow of time? It is a commonly held belief in the physics community that it relates to the increase of disorder, or entropy, as it appears in the statistical interpretation of the second law of thermodynamics.
Henriksson, Andreas
openaire   +3 more sources

Reversing the Arrow of Time [PDF]

, 2022
The arrow of time refers to the curious asymmetry that distinguishes the future from the past. Reversing the Arrow of Time argues that there is an intimate link between the symmetries of 'time itself' and time reversal symmetry in physical theories ...
Roberts, Bryan W.
core   +1 more source

String theory and the arrow of time

Journal 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

UKDataServiceOpen/ICTeSSH-Arrow-of-Time: Discovering the Arrow of Time in Machine Learning

, 2021
This release contains all the code for the research described in "Discovering the Arrow of Time in Machine Learning" as first published in the ICTeSSH 2021 conference, subsequently exteded and published in Information.
Anran Zhao
core   +1 more source

Remarks on the Compatibility of Opposite Arrows of Time

Entropy, 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   +1 more source

Time, the Arrow of Time, and Quantum Mechanics

Frontiers 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