quantum field theory

quantum field theory
the branch of quantum physics that is concerned with the theory of fields; it was motivated by the question of how an atom radiates light as its electrons jump from excited states
Hypernyms: ↑quantum physics

Useful english dictionary. 2012.

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  • quantum field theory — The overall theory of fundamental particles and their interactions. Each type of particle is represented by appropriate operators which obey certain commutation laws. Particles are the quanta of fields in the same way as photons are the quanta of …   Dictionary of automotive terms

  • Quantum field theory in curved spacetime — is an extension of standard quantum field theory to curved spacetime. A general prediction of this theory is that particles can be created by time dependent gravitational fields, or by time independent graviational fields that contain… …   Wikipedia

  • quantum field theory — noun Date: 1948 a theory in physics: the interaction of two separate physical systems (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 …   New Collegiate Dictionary

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  • Topological quantum field theory — A topological quantum field theory (or topological field theory or TQFT) is a quantum field theory which computes topological invariants.Although TQFTs were invented by physicists (notably Edward Witten), they are primarily of mathematical… …   Wikipedia

  • Constructive quantum field theory — In mathematical physics, constructive quantum field theory is the field devoted to showing that quantum theory is mathematically compatible with special relativity. This demonstration requires new mathematics, in a sense analogous to Newton… …   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

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