Results 41 to 50 of about 1,556,157 (299)

Quantum Computation and Arrows of Time

open access: yesEntropy, 2020
Quantum physics is surprising in many ways. One surprise is the threat to locality implied by Bell’s Theorem. Another surprise is the capacity of quantum computation, which poses a threat to the complexity-theoretic Church-Turing thesis.
Nathan Argaman
doaj   +1 more source

Alternative interpretation of relativistic time-reversal and the time arrow

open access: yesPhysical Review Research, 2022
It is well known that the 4-rotation in four-dimensional space-time is equivalent to the CPT transformation (C is the charge conjugation, P is the space inversion, and T is the time reversal). The standard definition of the T reversal includes the change
T. Zalialiutdinov   +4 more
doaj   +1 more source

Heat flow reversals without reversing the arrow of time: The role of internal quantum coherences and correlations [PDF]

open access: yesPhysical Review Research, 2019
One of the stunning consequences of quantum correlations in thermodynamics is the reversal of the arrow of time, recently shown experimentally in [K. Micadei, et al., Nat. Commun.
C. L. Latune   +2 more
semanticscholar   +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

Entanglement and the Thermodynamic Arrow of Time [PDF]

open access: yes, 2010
We discuss quantum entanglement in the context of the thermodynamic arrow of time. We review the role of correlations in entropy-decreasing events and prove that the occurrence of a transformation between two thermodynamic states constitutes a new type ...
A. Peres   +7 more
core   +2 more sources

Bluff your way in the second law of thermodynamics [PDF]

open access: yes, 2001
The aim of this article is to analyze the relation between the second law of thermodynamics and the so-called arrow of time. For this purpose, a number of different aspects in this arrow of time are distinguished, in particular those of time-(a)symmetry ...
Uffink, Jos
core   +6 more sources

The Second Law of Thermodynamics and the Psychological Arrow of Time

open access: yesBritish Journal for the Philosophy of Science, 2020
Can the second law of thermodynamics explain our mental experience of the direction of time? According to an influential approach, the past hypothesis of universal low entropy (required to explain the temporal directionality of the second law in terms of
M. Hemmo, O. Shenker
semanticscholar   +1 more source

Asymmetric energy transfers in driven nonequilibrium systems and arrow of time [PDF]

open access: yesEuropean Physical Journal B : Condensed Matter Physics, 2019
Fundamental interactions are either fully or nearly symmetric under time reversal. But macroscopic phenomena may have a definite arrow of time. From the perspectives of statistical physics, the direction of time is towards increasing entropy.
M. Verma
semanticscholar   +1 more source

The Importance of Boundary Conditions in Quantum Mechanics [PDF]

open access: yes, 2003
We discuss the role of boundary conditions in determining the physical content of the solutions of the Schrodinger equation. We study the standing-wave, the ``in,'' the ``out,'' and the purely outgoing boundary conditions. As well, we rephrase Feynman's $
A. F. J. Siegert   +16 more
core   +3 more sources

Learning and Using the Arrow of Time

open access: yes2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2018
We seek to understand the arrow of time in videos - what makes videos look like they are playing forwards or backwards? Can we visualize the cues? Can the arrow of time be a supervisory signal useful for activity analysis?
D. Wei   +3 more
semanticscholar   +1 more source

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