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quantum theory
[ kwon-tuhm thee-uh-ree, theer-ee ]
noun
- any theory predating quantum mechanics that encompassed Planck's radiation law and a scheme for obtaining discrete energy states for atoms, such as the Bohr model.
- any theory that treats certain phenomena by the methods of quantum mechanics:
a quantum theory of gravitation.
quantum theory
noun
- a theory concerning the behaviour of physical systems based on Planck's idea that they can only possess certain properties, such as energy and angular momentum, in discrete amounts (quanta). The theory later developed in several equivalent mathematical forms based on De Broglie's theory and on the Heisenberg uncertainty principle See wave mechanics
quantum theory
- Any of various theories that makes use of the assumptions, principles, and laws of quantum mechanics.
Word History and Origins
Origin of quantum theory1
Example Sentences
Then in 1964, John Stewart Bell proved a theorem that would test whether quantum theory was obscuring a full description of reality, as Einstein claimed.
Nor are the novel one- and two-dimensional materials that display the curiosities of quantum theory.
It is worth stating specifically why one might have ever imagined something so outlandish as the idea that quantum theory could be used to predict the stock market.
In quantum theory, a particle has a range of possible locations and speeds.
The quantum theory presented in standard textbooks involves two distinct rules for the evolution of the state of a physical system.
For that reason, researchers have developed a framework to describe quantum theory in combination with general relativity.
Quantum theory explains the small stuff, where matter and energy divide into infinitesimal particles.
In that way, it incorporates both classical physics and quantum theory to explain the most general range of phenomena yet.
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