quantum field theory
any field theory that applies the principles and methodology of quantum mechanics. Abbreviation: QFT
Origin of quantum field theory
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British Dictionary definitions for quantum field theory
physics quantum mechanical theory concerned with elementary particles, which are represented by fields whose normal modes of oscillation are quantized
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for 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 quantum electrodynamics.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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