field theory


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field theory

n.
1. An explicit mathematical description of physical phenomena that takes into account the effects of one or more fields.
2. The study of fields and field extensions in algebra.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

field′ the`ory



n.
a detailed mathematical description of the distribution and movement of matter under the influence of one or more fields: quantum field theory.
[1900–05]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.field theory - (physics) a theory that explains a physical phenomenon in terms of a field and the manner in which it interacts with matter or with other fields
theory - a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses"; "true in fact and theory"
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
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References in periodicals archive ?
Comparing (98)-(99) and 102)-(103), we see the existence of a cut-off in the momentum in the lattice field theory. In the theory of the lattice fields [[phi].sub.L](n), the momentum integration with respect to the wave-vector components [k.sub.[mu]] is restricted by the Brillouin zones k [member of] [-[k.sub.0[mu]]/2, [k.sub.0[mu]]/2], where [k.sub.0[mu]] = 2[pi]/[a.sub.[mu]].
Primes of the form x2 + ny2; Fermat, class field theory, and complex multiplication, 2d ed.
of Manchester, Britain) have expanded the 1984 first edition in order to treat quantum chromodynamics as well as quantum electrodynamics in their short introduction to quantum field theory for beginning research students in theoretical and experimental physics.
Emphasizing the wave aspects of the subject, Treiman concludes by delving into the intricacies of quantum field theory. Originally published in hardcover in 1999.
The mechanism of SBS was first demonstrated theoretically in quantum field theory: (1) In the system of infinitely many degrees of freedom described by the Hamiltonian manifesting the rotational symmetry, only one state is chosen spontaneously among the infinitely degenerate ground states as a real ground state of the system and the rotational symmetry of the system is broken without recourse to any external environment.
QED and the Men Who Made It will be of interest to anyone concerned with the philosophical foundations of quantum field theory. Schweber offers a lucid and technically detailed account of the deliberations of the architects of quantum field theory on many (if not all) important foundational issues.
Trying to match the predictive power and ever-rising institutional prestige of the hard sciences, and taking methodological lessons from people such as Marx and Freud, some literary critics feel a need to create the aesthetic equivalent of a unified field theory, a single system by which every work ever written (or yet to come!) can be perfectly and fully explicated.
The text is very modern in its appraoch to EM field theory, making heavy use of computer-generated graphics to display EM field formations.
Principles of Physics: From Quantum Field Theory to Classical Mechanics, 2nd Edition
Structural aspects of quantum field theory and noncommutative geometry; 2v.
He takes a quantum groups approach (rather than Chern-Simons field theory or 2-dimensional conformal field theory) in order to derive invariants of knots and 3-manifolds from algebraic objects which formalize the properties of modules over quantum groups at roots of unity.