Results 11 to 20 of about 374,288 (363)

Temporal Irreversibility of Large-Scale Brain Dynamics in Alzheimer’s Disease

open access: yesJournal of Neuroscience, 2023
Healthy brain dynamics can be understood as the emergence of a complex system far from thermodynamic equilibrium. Brain dynamics are temporally irreversible and thus establish a preferred direction in time (i.e., arrow of time).
Josephine Cruzat   +9 more
semanticscholar   +1 more source

Lower Bound on Irreversibility in Thermal Relaxation of Open Quantum Systems. [PDF]

open access: yesPhysical Review Letters, 2021
We consider the thermal relaxation process of a quantum system attached to single or multiple reservoirs. Quantifying the degree of irreversibility by entropy production, we prove that the irreversibility of the thermal relaxation is lower bounded by a ...
Tan Van Vu, Yoshihiko Hasegawa
semanticscholar   +1 more source

Scaling Analysis of Time-Reversal Asymmetries in Fully Developed Turbulence

open access: yesFractal and Fractional, 2023
In fully developed turbulence, there is a flux of energy from large to small scales in the inertial range until the dissipation at small scales. It is associated with irreversibility, i.e., a breaking of the time reversal symmetry.
François G. Schmitt
doaj   +1 more source

Coherent structures at the origin of time irreversibility in wall turbulence

open access: yesCommunications Physics, 2023
Time irreversibility is a distinctive feature of non-equilibrium phenomena such as turbulent flows, where irreversibility is mainly associated with an energy cascade process.
Giovanni Iacobello   +4 more
doaj   +1 more source

Approaching Irreversibility in Global Nuclear Politics

open access: yesJournal for Peace and Nuclear Disarmament, 2023
Despite growing interest in irreversibility, it remains one of the least-studied concepts in the nuclear disarmament and arms control literature.
Hassan Elbahtimy
semanticscholar   +1 more source

Gradualism and Irreversibility [PDF]

open access: yesReview of Economic Studies, 1999
The authors study the following model of a two-person non-zero-sum dynamic game \(\Gamma\): There are two players \(i=1,2\). In each period \(t=0,1,\dots\), both players \(i=1,2\) simultaneously choose an action \(c_{i,t} \in \mathbb{R}_{+}\), measuring \(i\)'s level of cooperation. The one step payoffs in period \(t\) to players 1 and 2 are \(\pi(c_{1,
Ben Lockwood, Jonathan P. Thomas
openaire   +4 more sources

Exergetic Assessment of Waste Gas to Energy in a Novel Integrated NGL Recovery and Power Generation Plant

open access: yesFrontiers in Energy Research, 2022
Natural gas processing, as one of the major energy sources, has become a focal point in boosting the energy value chain by processing high commercial value products such as natural gas liquids (NGL) and electricity generation.
Peter Alenoghena Aigba   +9 more
doaj   +1 more source

Randomness and Irreversiblity in Quantum Mechanics: A Worked Example for a Statistical Theory

open access: yesEntropy, 2021
The randomness of some irreversible quantum phenomena is a central question because irreversible phenomena break quantum coherence and thus yield an irreversible loss of information.
Yves Pomeau, Martine Le Berre
doaj   +1 more source

Generalized Landauer Bound for Information Processing: Proof and Applications

open access: yesEntropy, 2022
A generalized form of Landauer’s bound on the dissipative cost of classical information processing in quantum-mechanical systems is proved using a new approach.
Neal G. Anderson
doaj   +1 more source

Irreversibility as thermodynamic time

open access: yesOpen Physics, 2021
In Newtonian mechanics, time and space are perceived as absolute entities. In Einstein’s relativity theory, time is frame dependent. Time is also affected by gravitational field and as the field varies in space, time also varies throughout space.
Hwang Charles C.
doaj   +1 more source

Home - About - Disclaimer - Privacy