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quantum mechanics
noun
- a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. : QM
quantum mechanics
noun
- 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
quantum mechanics
- A fundamental theory of matter and energy that explains facts that previous physical theories were unable to account for, in particular the fact that energy is absorbed and released in small, discrete quantities (quanta), and that all matter displays both wavelike and particlelike properties, especially when viewed at atomic and subatomic scales. Quantum mechanics suggests that the behavior of matter and energy is inherently probabilistic and that the effect of the observer on the physical system being observed must be understood as a part of that system.
- Also called quantum physics quantum theory
- Compare classical physicsSee also probability wave
quantum mechanics
- The branch of physics that deals with the behavior of matter at the level of the atom , the nucleus , and the elementary particle . At this level, energy , mass , momentum , and other quantities do not vary continuously, as they do in the large-scale world, but come in discrete units, or quanta . ( See Bohr atom and photon .)
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˜yÐÄvlog History and Origins
Origin of quantum mechanics1
Example Sentences
Wheeler’s idea of the participatory universe is rooted in quantum mechanics, which allows a particle to be in two places at once by being in what is called a superposition state.
She is proud that Ghana, backed by Mexico, spearheaded proposals that 2025 be declared the UN International Year of Quantum Science and Technology - on the 100th anniversary of the discovery of modern quantum mechanics.
They harness quantum mechanics - the strange behaviour of ultra-tiny particles - to crack problems far faster than traditional computers.
"A quantum standard operates based on invariant principles of quantum mechanics, which makes it extraordinarily stable."
Its last major revolutions -- quantum mechanics and general relativity -- are a century old.
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