Results 1 to 10 of about 1,969,503 (237)

Classical mechanics as nonlinear quantum mechanics [PDF]

open access: yes, 2007
All measurable predictions of classical mechanics can be reproduced from a quantum-like interpretation of a nonlinear Schrodinger equation. The key observation leading to classical physics is the fact that a wave function that satisfies a linear equation
Andrei Yu. Khrennikov   +5 more
core   +1 more source

Subdynamics as a mechanism for objective description [PDF]

open access: yes, 1999
The relationship between microsystems and macrosystems is considered in the context of quantum field formulation of statistical mechanics: it is argued that problems on foundations of quantum mechanics can be solved relying on this relationship.
Bassano Vacchini   +9 more
core   +3 more sources

Berry's phase in noncommutative spaces [PDF]

open access: yes, 2002
We introduce the perturbative aspects of noncommutative quantum mechanics. Then we study the Berry's phase in the framework of noncommutative quantum mechanics. The results show deviations from the usual quantum mechanics which depend on the parameter of
Alavi S A   +10 more
core   +2 more sources

Thermodynamics for Trajectories of a Mass Point [PDF]

open access: yes, 2014
On the basis of information theory, a new formalism of classical non-relativistic mechanics of a mass point is proposed. The particle trajectories of a general dynamical system defined on an (1+n)-dimensional smooth manifold are treated geometrically as ...
Kurihara, Yoshimasa   +2 more
core   +2 more sources

On obtaining classical mechanics from quantum mechanics [PDF]

open access: yes, 2006
Constructing a classical mechanical system associated with a given quantum mechanical one, entails construction of a classical phase space and a corresponding Hamiltonian function from the available quantum structures and a notion of coarser observations.
Ashtekar A   +5 more
core   +2 more sources

Nambu Quantum Mechanics: A Nonlinear Generalization of Geometric Quantum Mechanics [PDF]

open access: yes, 2002
We propose a generalization of the standard geometric formulation of quantum mechanics, based on the classical Nambu dynamics of free Euler tops. This extended quantum mechanics has in lieu of the standard exponential time evolution, a nonlinear temporal
Abramovitz   +66 more
core   +2 more sources

Quantum Mechanics as an Approximation to Classical Mechanics in Hilbert Space

open access: yes, 2003
Classical mechanics is formulated in complex Hilbert space with the introduction of a commutative product of operators, an antisymmetric bracket, and a quasidensity operator.
A J Bracken   +18 more
core   +1 more source

Generalization of Classical Statistical Mechanics to Quantum Mechanics and Stable Property of Condensed Matter

open access: yes, 2005
Classical statistical average values are generally generalized to average values of quantum mechanics, it is discovered that quantum mechanics is direct generalization of classical statistical mechanics, and we generally deduce both a new general ...
Anandan J.   +18 more
core   +1 more source

Depicting qudit quantum mechanics and mutually unbiased qudit theories

open access: yes, 2014
We generalize the ZX calculus to quantum systems of dimension higher than two. The resulting calculus is sound and universal for quantum mechanics. We define the notion of a mutually unbiased qudit theory and study two particular instances of these ...
Ranchin, André
core   +2 more sources

Randomness in Classical Mechanics and Quantum Mechanics

open access: yes, 2009
The Copenhagen interpretation of quantum mechanics assumes the existence of the classical deterministic Newtonian world. We argue that in fact the Newton determinism in classical world does not hold and in classical mechanics there is fundamental and ...
A. Yu Khrennikov   +19 more
core   +1 more source

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