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

Recent Examples on the Web His research has explored particle physics, quantum field theory, and quantum aspects of the early universe and black holes. Quanta Magazine, 14 Mar. 2024 These effects occur because of the nature of the Standard Model, which is a type of quantum field theory. Luke Caldwell, Scientific American, 16 Jan. 2024 In quantum field theories, the basic building blocks of the universe are fields, not particles. Luke Caldwell, Scientific American, 16 Jan. 2024 But some of my colleagues have also studied a beautiful concept called mirror symmetry, in which each space has a mirror image with the same quantum field theory and the same physics. Pamela Weintraub, Discover Magazine, 28 June 2023 Neither physicists nor mathematicians know exactly what makes a quantum field theory a quantum field theory. Kevin Hartnett, Wired, 20 June 2021 Now, quantum field theory is not a complete description of nature. Steven Strogatz, Quanta Magazine, 26 July 2023 The quantum field theory framework needed some adjustment for Borinsky and Vogtmann to get the right count. Leila Sloman, Quanta Magazine, 16 Feb. 2023 Conformal field theory is a type of quantum field theory that has certain special mathematical properties. Popular Mechanics, 31 July 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'quantum field theory.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1948, in the meaning defined above

Time Traveler
The first known use of quantum field theory was in 1948

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Cite this Entry

“Quantum field theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20field%20theory. Accessed 24 Jun. 2024.

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