quantum theory

noun

1

: a theory in physics based on the concept of the subdivision of radiant energy into finite quanta and applied to numerous processes involving transference or transformation of energy in an atomic or molecular scale

2

: quantum mechanics

Examples of quantum theory in a Sentence

Recent Examples on the Web

Scientists looking at things like black holes and quantum theory are suggesting that o1 is going to help them more than previous models. —John Werner, Forbes, 11 Oct. 2024

But the quantum theories that describe the real particles of our world put variables in the numerator too. —Charlie Wood, Quanta Magazine, 25 Sep. 2024

But Tang and company used techniques far removed from quantum theory. —Ben Brubaker, WIRED, 22 Sep. 2024

For instance, could quantum theory be a kind of generalization of probability theory and information theory, divorced from applications to atoms? —Quanta Magazine, 12 Sep. 2024

Word History

First Known Use

1912, in the meaning defined at sense 1

Kids Definition

quantum theory

noun

: a theory in physics based on the idea that radiant energy (as light) is composed of small separate packets of energy

Medical Definition

quantum theory

noun

: a theory in physics based on the concept of the subdivision of radiant energy into finite quanta and applied to numerous processes involving transference or transformation of energy in an atomic or molecular scale