noun
light quantum; photon
Physics term for the quantum of light. Synonymous with 光子 (こうし), but 光量子 is less common in everyday contexts.
See also: 光子
光量子は光子とも呼ばれる。
A light quantum is also called a photon.
光量子仮説はアインシュタインに
The light quantum hypothesis was proposed by Einstein.
Compound of 光 (light) and 量子 (quantum), directly calqued from English 'light quantum'.