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Definition of Quantum theory
1. Noun. (physics) a physical theory that certain properties occur only in discrete amounts (quanta).
Category relationships: Natural Philosophy, Physics
Examples of category: Indeterminacy Principle, Uncertainty Principle
Definition of Quantum theory
1. Noun. (context: physics) A theory developed in early 20th century, according to which nuclear and radiation phenomena can be explained by assuming that energy only occurs in discrete amounts called quanta. In current usage '''quantum theory''' may refer to any or all of the following, depending on the context: ¹
¹ Source: wiktionary.com
Medical Definition of Quantum theory
1. The theory that the radiation and absorption of energy take place in definite quantities called quanta (e) which vary in size and are defined by the equation e=hv in which h is planck's constant and v is the frequency of the radiation. (12 Dec 1998)
Lexicographical Neighbors of Quantum Theory
Literary usage of Quantum theory
Below you will find example usage of this term as found in modern and/or classical literature:
1. X Rays by George William Clarkson Kaye (1918)
"The quantum theory, which has been applied to many branches of physics, originated
in an attempt to account for the spectrum of black-body radiation. ..."
2. X Rays by George William Clarkson Kaye (1917)
"The quantum theory, which has been applied to many branches of physics, originated
in an attempt to account for the spectrum of black-body radiation. ..."
3. Electric Waves: Being Researches on the Propagation of Electric Action with ...by Heinrich Hertz, Daniel Evan Jones by Heinrich Hertz, Daniel Evan Jones (1893)
"Studies evidence for quantum theory, for inadequacy of classical mechanics, ...
A Nobel laureate discusses quantum theory; Heisenberg's own work, ..."
4. A System of Physical Chemistry by William Cudmore McCullagh Lewis, James Rice (1919)
"that the quantum theory applied to atomic heat of solids leads us to expect that at
... Hence the quantum theory leads to the conclusion that in a chemical ..."
5. A System of Physical Chemistry by William Cudmore McCullagh Lewis, James Rice (1919)
"that the quantum theory applied to atomic heat ot solids leads us to expect that at
... Hence the quantum theory leads to the conclusion that in a chemical ..."
6. The Chemical Effects of Alpha Particles and Electrons by Samuel Colville Lind (1921)
"Einstein's Application of the quantum theory to Photochemical Action. ...
This step was taken by Planck in his quantum theory according to which energy is ..."
7. The Origin of Spectra by Paul Darwin Foote, Fred Loomis Mohler (1922)
"Chapter I The quantum theory of Spectroscopy The quantum theory of spectra has
... In spite of sue h inconsistency the quantum theory of spectra is the only ..."
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