## quantum theory

All Sources

**-**## quantum theory

**quantum theory** The foundation of 20th-century physics, together with the theory of relativity. It concerns itself with the relationship between matter and energy at the elementary or subatomic level, and with the behaviour of elementary particles. The theory is the basis of quantum mechanics. See also quantum numbers

#### More From encyclopedia.com

Albert Einstein
,
EINSTEIN, ALBERT
(b. Ulm, Germany, 14 March 1879;
d. Princeton, New Jersey, 18 April 1955)
physics. For the original article on Einstein see DSB, vol…
String Theory
,
String theory is a proposed unified theory of fundamental physics, incorporating both particle physics and gravity. It is based on the idea that the…
Arthur Eddington
,
Eddington, Arthur Stanley
Eddington, Arthur Stanley
astronomy, relativity.
Eddington was the son of a Somerset Quaker, Arthur Henry Eddington, headma…
Gustav Hertz
,
Known for his collaborations with fellow colleague James Franck at the University of Berlin, German scientist Gustav Hertz (1887-1975) achieved fame…
Erwin Schrodinger
,
Schrödinger, Erwin
SCHRöDINGER, ERWIN
theoretical physics.
Schrödinger’s father, Rudolf Schrödinger, inherited an oilcloth factory, which, although r…
Hendrik Antoon Lorentz
,
Lorentz, Hendrik Antoon
Lorentz, Hendrik Antoon
theoretical physics.
Lorentz, father, Gerrit Frederik Lorentz, owned a nursery near Arnhem. His mothe…

#### You Might Also Like

#### NEARBY TERMS

**quantum theory**