Results 21 to 30 of about 2,564,919 (305)

Disorder-induced quantum-to-classical transition, or how the world becomes classical [PDF]

open access: yesEPJ Web of Conferences, 2022
Decoherence theory explains how quantum mechanics gives rise to classical mechanics through the entanglement of a quantum system’s evolution with the degrees of freedom of the environment.
Bringuier Eric
doaj   +1 more source

Classical mechanics [PDF]

open access: yesPhysics, Structure, and Reality, 1999
This chapter applies our reasoning about structure in physics to two formulations of classical mechanics, Lagrangian and Newtonian mechanics, that are generally taken to be completely equivalent.
H. Goldstein
semanticscholar   +1 more source

Quantum–Classical Mechanics and the Franck–Condon Principle

open access: yesComputer Sciences & Mathematics Forum, 2023
Quantum–classical mechanics and the Franck–Condon principle related to quantum mechanics are discussed as two alternative theoretical approaches to molecular optical spectroscopy.
Vladimir V. Egorov
doaj   +1 more source

κ-Deformed quantum and classical mechanics for a system with position-dependent effective mass [PDF]

open access: yes, 2020
We present the quantum and classical mechanics formalisms for a particle with position-dependent mass in the context of a deformed algebraic structure (named $\kappa$-algebra), motivated by the Kappa-statistics.
Bruno G. da Costa, I. Gomez, M. Portesi
semanticscholar   +1 more source

Elementary Solution of Kepler Problem (and a few other problems)

open access: yesRevista Brasileira de Ensino de Física, 2022
We present a simple method to obtain the solution of a few orbital problems: the Kepler problem, the modified Kepler problem by the addition of an inverse square potential and linear force.
M. Moriconi
doaj   +1 more source

Transmutation of central forces and Bertrand’s theorem [PDF]

open access: yesTheoretical and Applied Mechanics, 2023
The transmutation of central forces, or dual law, is a transformation linking potentials in power law relative to the distance, that is, those having a positive exponent to those having a negative exponent.
Carimalo Christian
doaj   +1 more source

Real numbers are the hidden variables of classical mechanics [PDF]

open access: yesQuantum Studies: Mathematics and Foundations, 2019
Do scientific theories limit human knowledge? In other words, are there physical variables hidden by essence forever? We argue for negative answers and illustrate our point on chaotic classical dynamical systems.
N. Gisin
semanticscholar   +1 more source

The functional mechanics: evolution of the moments of distribution function and the poincare recurrence theorem

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
One of modern approaches to a problem of the coordination of classical mechanics and the statistical physics - the functional mechanics is considered.
Andrey I Mikhailov
doaj   +3 more sources

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

An algebraic approach to Koopman classical mechanics [PDF]

open access: yesAnnals of Physics, 2019
Classical mechanics is presented here in a unary operator form, constructed using the binary multiplication and Poisson bracket operations that are given in a phase space formalism, then a Gibbs equilibrium state over this unary operator algebra is ...
P. Morgan
semanticscholar   +1 more source

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