Results 11 to 20 of about 184,756 (321)

Quantum group invariant, nonextensive quantum statistical mechanics [PDF]

open access: green, 2001
We study the consequences of introducing quantum group invariance in the formalism of nonextensive quantum statistical mechanics. We find that the corresponding thermodynamical system is equivalent to a Bose-Einstein gas in the Boltzmann-Gibbs ...
Marcelo R. Ubriaco
openalex   +3 more sources

On the foundation of equilibrium quantum statistical mechanics

open access: green, 1998
We discuss the condition for the validity of equilibrium quantum statistical mechanics in the light of recent developments in the understanding of classical and quantum chaotic motion.
Giulio Casati
openalex   +4 more sources

Contextuality in Classical Physics and Its Impact on the Foundations of Quantum Mechanics

open access: yesEntropy, 2021
It is shown that the hallmark quantum phenomenon of contextuality is present in classical statistical mechanics (CSM). It is first shown that the occurrence of contextuality is equivalent to there being observables that can differentiate between pure and
Fritiof Wallentin
doaj   +1 more source

Relaxation of Multitime Statistics in Quantum Systems [PDF]

open access: yesQuantum, 2023
Equilibrium statistical mechanics provides powerful tools to understand physics at the macroscale. Yet, the question remains how this can be justified based on a microscopic quantum description. Here, we extend the ideas of pure state quantum statistical
Neil Dowling   +4 more
doaj   +1 more source

Quantum–Classical Mechanics: Statistical Approach to Molecular Collisions

open access: yesComputer Sciences & Mathematics Forum, 2023
The chaotic dynamics of the transient state in molecular and physicochemical transitions in quantum–classical mechanics is considered in relation to the problem of redistribution of the vibrational–rotational energy of polyatomic molecules M and M1 in ...
Vladimir V. Egorov
doaj   +1 more source

Quantum magnetostriction effect resulting from the asymmetric structure of matter measured with EPR spectrometer [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
This paper explains the rotation and displacement as well as the couple and force stress in material with unpaired electrons/nucleons subjected to a magnetic field.
Marek Sikoń, Ewa Bidzinska
doaj   +1 more source

Probabilistic cellular automata for interacting fermionic quantum field theories

open access: yesNuclear Physics B, 2021
A classical local cellular automaton can describe an interacting quantum field theory for fermions. We construct a simple classical automaton for a particular version of the Thirring model with imaginary coupling. This interacting fermionic quantum field
C. Wetterich
doaj   +1 more source

Statistical mechanics of integrable quantum spin systems

open access: yesSciPost Physics Lecture Notes, 2020
This script is based on the notes the author prepared to give a set of six lectures at the Les Houches School "Integrability in Atomic and Condensed Matter Physics" in the summer of 2018.
Frank Göhmann
doaj   +1 more source

Quantum Mechanics: Statistical Balance Prompts Caution in Assessing Conceptual Implications

open access: yesEntropy, 2022
Throughout quantum mechanics there is statistical balance, in the collective response of an ensemble of systems to differing measurement types. Statistical balance is a core feature of quantum mechanics, underlying quantum mechanical states, and not yet ...
Brian Drummond
doaj   +1 more source

Entropy of Quantum States

open access: yesEntropy, 2021
Given the algebra of observables of a quantum system subject to selection rules, a state can be represented by different density matrices. As a result, different von Neumann entropies can be associated with the same state.
Paolo Facchi   +2 more
doaj   +1 more source

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