Gauge theory — For a generally accessible and less technical introduction to the topic, see Introduction to gauge theory. In physics, a gauge theory is a type of field theory in which the Lagrangian is invariant under a continuous group of local transformations … Wikipedia
Quantum field theory — In quantum field theory (QFT) the forces between particles are mediated by other particles. For instance, the electromagnetic force between two electrons is caused by an exchange of photons. But quantum field theory applies to all fundamental… … Wikipedia
quantum field theory — Physics. any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated. [1945 50] * * * Theory that brings quantum … Universalium
gauge theory — ▪ physics class of quantum field theory, a mathematical theory involving both quantum mechanics and Einstein s special theory of relativity that is commonly used to describe subatomic particles and their associated wave fields. In a gauge… … Universalium
Lattice gauge theory — In physics, lattice gauge theory is the study of gauge theories on a spacetime that has been discretized onto a lattice. Although most lattice gauge theories are not exactly solvable, they are of tremendous appeal because they can be studied by… … Wikipedia
Chiral gauge theory — In quantum field theory, a chiral gauge theory is a quantum field theory with charged chiral (i.e. Weyl) fermions. For instance, the Standard Model is a chiral gauge theory. For topological reasons, chiral charged fermions cannot be given a mass… … Wikipedia
gauge theory — noun Physics a quantum theory using mathematical functions to describe subatomic interactions in terms of particles that are not directly detectable … English new terms dictionary
Introduction to gauge theory — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Gauge theory. Quantum field theory … Wikipedia
Relationship between string theory and quantum field theory — Many first principles in quantum field theory are explained, or get further insight, in string theory: * Emission and absorption: one of the most basic building blocks of quantum field theory, is the notion that particles (such as electrons) can… … Wikipedia
History of quantum field theory — The history of quantum field theory starts with its creation by Dirac when he attempted to quantize the electromagnetic field in the late 1920s. Foundations The early development of the field involved Fock, Pauli, Heisenberg, Bethe, Tomonaga,… … Wikipedia
