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Statistical mechanics for non-Hermitian quantum systems

open access: yesPhysical Review Research, 2023
We present a systematic study of statistical mechanics for non-Hermitian quantum systems. Our work reveals that the stability of a non-Hermitian system necessitates the existence of a single path-dependent conserved quantity, which, in conjunction with ...
Kui Cao, Su-Peng Kou
doaj   +1 more source

Hybrid classical-quantum computing: Applications to statistical mechanics of financial markets [PDF]

open access: yesE3S Web of Conferences, 2021
Hybrid Classical-Quantum computing is now offered by several commercial quantum computers. In this project, a model of financial options, Statistical Mechanics of Financial Markets (SMFM), uses this approach. However, only Classical (super-)computers are
Ingber Lester
doaj   +1 more source

Gas of Particles Obeying the Monotone Statistics

open access: yesEntropy, 2023
The present note is devoted to the detailed investigation of a concrete model satisfying the block-monotone statistics introduced in a previous paper (joint, with collaborators) of the author.
Francesco Fidaleo
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

Dynamical indistinguishability and statistics in quantum fluids [PDF]

open access: yesAnnals of Physics 452, 169272 (2023), 2021
For a system to qualify as a quantum fluid, quantum-statistical effects should operate in addition to quantum-mechanical ones. Here, we address the hitherto unexplored dynamical condition for the quantum-statistical effects to be manifested, and consider particle exchange events in the gaslike regime of fluid dynamics as a dynamical process with an ...
arxiv   +1 more source

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

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

A new statistical thermodynamic mechanism for quantum mechanics

open access: yesFrontiers in Physics, 2022
A new quantum mechanics mechanism theory based on statistical mechanics is introduced. This theory is based on corresponding changes in the number of states with associated energy changes at the observer and observed occurring at observer 1) reset and 2)
Martin Alpert
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

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