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n. (used with a sing. or pl. verb)
1. Quantum theory, especially the quantum theory of the structure and behavior of atoms and molecules.
2. See quantum physics.
quantum mechanical adj.
(Atomic Physics) (functioning as singular) the branch of mechanics, based on the quantum theory used for interpreting the behaviour of elementary particles and atoms, which do not obey Newtonian mechanics
(used with a sing. v.) a quantum theory of the mechanics of atoms, molecules, and other physical systems subject to the uncertainty principle.
See quantum theory.
A system of mechanics that supplanted Newtonian mechanics in the study of subatomic particles.
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|Noun||1.||quantum mechanics - the branch of quantum physics that accounts for matter at the atomic level; an extension of statistical mechanics based on quantum theory (especially the Pauli exclusion principle)|
quantum physics - the branch of physics based on quantum theory
wave mechanics - the modern form of quantum theory; an extension of quantum mechanics based on Schrodinger's equation; atomic events are explained as interactions between particle waves