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In physics, a free particle is a particle that, in some sense, is not bound by an external force, or equivalently not in a region where its potential energy varies. In classical physics, this means the particle is present in a "field-free" space. In quantum mechanics, it means the particle is in a region of uniform potential, usually set to zero in the region of interest since the potential can be arbitrarily set to zero at any point in space. | In physics, a free particle is a particle that, in some sense, is not bound by an external force, or equivalently not in a region where its potential energy varies. In classical physics, this means the particle is present in a "field-free" space. In quantum mechanics, it means the particle is in a region of uniform potential, usually set to zero in the region of interest since the potential can be arbitrarily set to zero at any point in space. | ||
==Sources== | ==Sources== | ||
[https://www.lcpmr.cnrs.fr/sites/default/files/Resum%C3%A9-1-3C001-2020-bis.pdf Source : Cours 3C1001, Introduction à la mécanique quantique, CNRS] | |||
[https://en.wikipedia.org/wiki/Quantum_mechanics Source : wikipedia] | [https://en.wikipedia.org/wiki/Quantum_mechanics Source : wikipedia] | ||
Version du 23 juillet 2025 à 13:45
en construction
INFORMATIQUE QUANTIQUE
Définition
Français
particule libre
Anglais
free particle
In physics, a free particle is a particle that, in some sense, is not bound by an external force, or equivalently not in a region where its potential energy varies. In classical physics, this means the particle is present in a "field-free" space. In quantum mechanics, it means the particle is in a region of uniform potential, usually set to zero in the region of interest since the potential can be arbitrarily set to zero at any point in space.
Sources
Source : Cours 3C1001, Introduction à la mécanique quantique, CNRS
Contributeurs: Arianne Arel, wiki
