electromagnetic field momentum
121Physics — (Greek: physis φύσις), in everyday terms, is the science of matter [R. P. Feynman, R. B. Leighton, M. Sands (1963), The Feynman Lectures on Physics , ISBN 0 201 02116 1 Hard cover. p.1 1 Feynman begins with the atomic hypothesis.] and its motion …
122Spin tensor — In mathematics and mathematical physics, the Euclidean group :SE(d) of direct isometries is generated by translations and rotations. Its Lie algebra is written:mathfrak{se}(d). Noether currentsThe Noether currents for the translations make up the …
123Magnetic dipole transition — The interaction of an electromagnetic wave with an electron bound in an atom or molecule can be described by time dependent perturbation theory. Magnetic dipole transitions describe the dominant effect of the coupling to the magnetic part of the… …
124Canonical quantization — In physics, canonical quantization is one of many procedures for quantizing a classical theory. Historically, this was the earliest method to be used to build quantum mechanics. When applied to a classical field theory it is also called second… …
125Kaluza–Klein theory — In physics, Kaluza–Klein theory (or KK theory, for short) is a model that seeks to unify the two fundamental forces of gravitation and electromagnetism. The theory was first published in 1921 and was discovered by the mathematician Theodor Kaluza …
126Geometrized unit system — A geometrized unit system or geometric unit system is a system of natural units in which the base physical units are chosen so that the speed of light, c , and the gravitational constant, G , are set equal to unity. : c = 1 : G = 1 The… …
127Gupta-Bleuler formalism — In quantum field theory, the Gupta Bleuler formalism is a way of quantizing the electromagnetic field. The formulation is due to theoretical physicist Suraj N. Gupta and Konrad Bleuler.Let s start with a single photon first. A basis of the one… …
128Correspondence principle — This article discusses quantum theory and relativity. For other uses, see Correspondence principle (disambiguation). In physics, the correspondence principle states that the behavior of systems described by the theory of quantum mechanics (or by… …
