Definition of quantum mechanics in English:

quantum mechanics

Pronunciation /ˈˌkwän(t)əm məˈkaniks/ /ˈˌkwɑn(t)əm məˈkænɪks/

plural noun

treated as singular
  • The branch of mechanics that deals with the mathematical description of the motion and interaction of subatomic particles, incorporating the concepts of quantization of energy, wave-particle duality, the uncertainty principle, and the correspondence principle.

    ‘According to the laws of quantum mechanics, these electrons may exist only in certain states.’
    • ‘In fact, it is arguably the most important fundamental concept behind all of quantum mechanics.’
    • ‘On the other hand, in quantum mechanics you will deal more with algebraic techniques.’
    • ‘One of the bizarre paradoxes of quantum mechanics is that elementary particles can exist in two or more states at the same time.’
    • ‘Even a biologist must trust what a physicist says about quantum mechanics.’
    • ‘This implies that we will always have uncertainty in any system, not just in quantum mechanics or in mathematics.’
    • ‘For Doppler cooling, we need another detail from quantum mechanics, and a bit of relativity.’
    • ‘The theory that describes atoms and their constituents is quantum mechanics.’
    • ‘Firstly, it consistently embodies both special relativity and quantum mechanics.’
    • ‘The entire field of quantum mechanics owes much of its existence to the study of angular momentum.’
    • ‘String theory's claim thus allows quantum mechanics to incorporate gravity and do so successfully.’
    • ‘His official courses were on quantum mechanics, classical mechanics, and complex function theory.’
    • ‘His interests range from astrophysics and quantum mechanics to mathematical puzzles and games.’
    • ‘It can be said that Heisenberg's quantum mechanics has made possible a systemization of spectra of atoms.’
    • ‘In the answer to this question lies the whole key to quantum mechanics.’
    • ‘So with growing trepidation, I searched through my past writings on quantum mechanics.’
    • ‘We know from quantum mechanics that nothing is real, except for the observations themselves.’
    • ‘The second question, of course, was rendered questionable by quantum mechanics.’
    • ‘In 1976 I began investigating what quantum mechanics might have to say.’
    • ‘What happens when we add quantum mechanics to the analysis of classical black holes?’