quantum mechanics

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quantum mechanics

n. (used with a sing. or pl. verb)
1. Quantum theory, especially the quantum theory of the structure and behavior of atoms and molecules.

quantum mechanical adj.

quantum mechanics

n
(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

quan′tum mechan′ics



n.
(used with a sing. v.) a quantum theory of the mechanics of atoms, molecules, and other physical systems subject to the uncertainty principle.
[1920–25]
quan′tum-me•chan′i•cal, adj.

quantum mechanics

quantum mechanics

A system of mechanics that supplanted Newtonian mechanics in the study of subatomic particles.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
Translations
kvantová mechanika
kvanttimekaniikka
mécanique quantique
kvantna mehanika
meccanica quantisticameccanica quantica
mechanika kwantowa
References in periodicals archive ?
In this bizarre quantum-mechanical environment-where one can speak only of probabilities of events rather than certainties-physical properties naturally would be vastly different from the way we experience them today.
It also raises some other potentially fascinating questions, such as, have these organisms developed quantum-mechanical strategies for light-harvesting to gain an evolutionary advantage?
Scholes and colleagues devised an experiment to see whether these quantum-mechanical wavelike properties were also present at ambient temperatures.
Quantum-mechanical signal processing and spectral analysis.
This state filling and emptying, called population inversion, is essential for laser action and was achieved by tunneling, a counter-intuitive quantum-mechanical process by which electrons can traverse ultrathin (nanometer-thick) barriers even when they have an energy too small to surmount it.
The treatment is based on rigorous quantum-mechanical theories and procedures that are readily implemented in either manual methods or with symbolic computational software.
They have independently invented and developed methods for measuring and manipulating individual particles while preserving their quantum-mechanical nature, in ways that were previously thought unattainable, according to a statement from the Royal Swedish Academy of Sciences.
Built so far only in laboratories and on a limited scale, quantum computers exploit the quantum-mechanical properties of tiny objects, such as photons and ions, to perform calculations (SN: 1/7/06, p.
Gerry (physics, City University of New York) and Knight (physics, Imperial College, UK) provide an elementary introduction to quantum optics, the study of the quantum-mechanical nature of light and its interaction with matter.
2] is a prototype molecular system for complex quantum-mechanical configuration mixing of bound, excited states and states in the ionization continuum.