Dirac bispinor

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• Bispinor — In physics, bispinor is a four component object which transforms under the (½,0) oplus;(0,½) representation of the covariance group of special relativity [covariance group of special relativity is O^+(1,3) or the Lorentz group.] (see, e.g.,… …   Wikipedia

• Dirac spinor — In quantum field theory, the Dirac spinor is the bispinor in the plane wave solution of the free Dirac equation, where (in the units ) is a relativistic spin 1/2 field …   Wikipedia

• Bispinor — Die Weyl Gleichung, nach Hermann Weyl benannt, ist die Diracgleichung für masselose Teilchen mit Spin 1/2. Sie wird bei der Beschreibung der schwachen Wechselwirkung verwendet. Die Darstellung der Lorentzgruppe auf Dirac Spinoren ist reduzibel.… …   Deutsch Wikipedia

• Breit equation — The Breit equation is a relativistic wave equation derived by Gregory Breit in 1929 based on the Dirac equation, which formally describes two or more massive spin 1/2 particles (electrons, for example) interacting electromagnetically to the first …   Wikipedia

• Quantum electrodynamics — (QED) is a relativistic quantum field theory of electrodynamics. QED was developed by a number of physicists, beginning in the late 1920s. It basically describes how light and matter interact. More specifically it deals with the interactions… …   Wikipedia

• Spinor —   [englisch] der, s/... noren, mehrkomponentige mathematische Größe mit komplexwertigen Komponenten, die sich unter einer Transformation der räumlichen Drehung oder unter einer Lorentz Transformation in bestimmter Weise ändern, ähnlich wie die… …   Universal-Lexikon

• Representation theory of the Lorentz group — The Lorentz group of theoretical physics has a variety of representations, corresponding to particles with integer and half integer spins in quantum field theory. These representations are normally constructed out of spinors.The group may also be …   Wikipedia

• Covariance group — In physics, covariance group is a group of coordinate transformations between admissible frames of reference (see for example[1]). The frames are assumed to provide equivalent description of physical phenomena. The covariance principle suggests… …   Wikipedia