**Quantum theory** — may mean:In science: * Old quantum theory under the Bohr model * Quantum mechanics, an umbrella term sometimes for all of quantum physics, but sometimes for just non relativistic theories * Quantum field theory, a generic type of relativistic… … Wikipedia

**quantum theory** — ► NOUN ▪ a theory of matter and energy based on the idea of quanta … English terms dictionary

**quantum theory** — n. the theory that energy is not absorbed or radiated continuously but discontinuously, and only in multiples of definite, indivisible units (quanta) … English World dictionary

**quantum theory** — quantum .theory n [U] the idea that energy, especially light, travels in separate pieces and not in a continuous form … Dictionary of contemporary English

**quantum theory** — quantum ,theory noun uncount SCIENCE the belief that energy is produced in units and that the size of these units can be calculated … Usage of the words and phrases in modern English

**quantum theory** — Physics. 1. any theory predating quantum mechanics that encompassed Planck s radiation formula and a scheme for obtaining discrete energy states for atoms, as Bohr theory. 2. any theory that treats certain phenomena by the methods of quantum… … Universalium

**quantum theory** — noun 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… … Wiktionary

**quantum theory** — quan′tum the ory n. 1) phs a theory for predicting the discrete energy states of atoms and of radiation 2) phs any theory that describes a force or field using the methods of quantum mechanics: a quantum theory of gravitation[/ex] • Etymology:… … From formal English to slang

**quantum theory** — kvantinė teorija statusas T sritis fizika atitikmenys: angl. quantum theory vok. Quantentheorie, f rus. квантовая теория, f pranc. théorie des quanta, f; théorie quantique, f … Fizikos terminų žodynas

**quantum theory of light** — kvantinė šviesos teorija statusas T sritis fizika atitikmenys: angl. light quantum theory; quantum theory of light vok. Lichtquantentheorie, f rus. квантовая теория света, f pranc. théorie des quanta de lumière, f; théorie quantique de la lumière … Fizikos terminų žodynas