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quantum field theory
[ kwon-tuhm feeld thee-uh-ree, theer-ee ]
noun
, Physics.
- any field theory that applies the principles and methodology of quantum mechanics. : QFT
quantum field theory
noun
- physics quantum mechanical theory concerned with elementary particles, which are represented by fields whose normal modes of oscillation are quantized
quantum field theory
- The application of quantum mechanics to physical systems described by fields, such as electromagnetic fields. Quantum field theory was developed to overcome certain deficiencies in Schrödinger's equation , in particular the fact that it was not consistent with special relativity and was difficult to apply to systems involving many particles or to the creation and destruction of particles.
- See also quantum chromodynamics
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Word History and Origins
Origin of quantum field theory1
First recorded in 1945–50
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