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: any of the very small increments or parcels into which many forms of energy are subdivided. b. : any of the small subdivisions of a quantized physical magnitude (such as magnetic moment) quantum. 2 of 2. adjective. 1. : large, significant. a quantum improvement.
In physics, a quantum (pl.: quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. Quantum is a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.
Quantum, in physics, discrete natural unit, or packet, of energy, charge, angular momentum, or other physical property. Light, for example, appearing in some respects as a continuous electromagnetic wave, on the submicroscopic level is emitted and absorbed in discrete amounts, or quanta.
Quanta are "packets" of energy, an innocuous term that wound up having explosive effects.
Quantum physics is the study of matter and energy at the most fundamental level. It aims to uncover the properties and behaviors of the very building blocks of nature. While many quantum experiments examine very small objects, such as electrons and photons, quantum phenomena are all around us, acting on every scale.
(Definition of quanta from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) Examples of quanta. quanta. The half-saturating intensities calculated for 580- and 650-nm light were significantly higher (4.3 10 8 and 5 10 9 2 quanta 0cm 0s, respectively). From the Cambridge English Corpus.
quanta. sing. quantum In physics, discrete bundles in which radiation and other forms of energy occur. For example, in the Bohr atom, light is sent out in quanta called photons. ( See quantum mechanics .)
