quantum field theory


Definition of quantum field theory

: a theory in physics: the interaction of two separate physical systems (such as particles) is attributed to a field that extends from one to the other and is manifested in a particle exchange between the two systems

Examples of quantum field theory in a Sentence

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Now many physicists are attempting to do the same with quantum field theory. Quanta Magazine, "The Strange Second Life of String Theory," 15 Sep. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quantum field theory.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of quantum field theory

1948, in the meaning defined above

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The first known use of quantum field theory was in 1948

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More from Merriam-Webster on quantum field theory

Britannica.com: Encyclopedia article about quantum field theory

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a topic to which one constantly reverts

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