Coulomb gauge gaz-e Coulomb Fr.: jauge de Coulomb The optimum → gauge for steady fields, defined by: ∇.A = 0, where A is the → magnetic vector potential. Also called transverse gauge. |
gauge (n.) gaz; (v.) gaz kardan Fr.: jauge 1) (n.) A standard of measure or measurement, size, or quantity. From Fr. jauge "gauging rod," perhaps from Frankish galga "rod, pole for measuring;" cf. O.N. gelgja "pole, perch;" O.H.G. galgo; Lith. zalga "pole, perch;" Arm. dzalk "pole;" E. gallows; see below. Gaz "a yard for measuring cloth; a length of 24 finger-breadths, or six hands; the tamarisk-tree," from Mid.Pers. gaz "tamarisk," may be of the same origin as gauge. In verbal form with kardan "to do, to make" (Mid.Pers. kardan; O.Pers./Av. kar- "to do, make, build;" Av. kərənaoiti "he makes;" cf. Skt. kr- "to do, to make," krnoti "he makes, he does," karoti "he makes, he does," karma "act, deed;" PIE base k^{w}er- "to do, to make"). |
gauge boson bozon-e gaz Fr.: boson de jauge A class of elementary particles that includes the gluon, photon, W^{+}, W^{-}, and Z^{0} particles, each having an integral spin. |
gauge group goruh-e gaz (#) Fr.: groupe de jauge The mathematical group associated with a particular set of gauge transformations. |
gauge invariance nâvartâyi-ye gaz Fr.: invariance de jauge The invariance of any field theory under gauge transformation. → gauge; → invariance. |
gauge symmetry hamâmuni-ye gaz Fr.: symétrie de jauge A principle underlying the quantum-mechanical description of the three non-gravitational forces. It allows a system to behave in the same way even though it has undergone various transformations. The earliest physical theory which had a gauge symmetry was Maxwell's electrodynamics. |
gauge theory negare-ye gaz (#) Fr.: théorie de jauge A field theory in which it is possible to perform a transformation without altering any measurable physical quantity. |
gauge transformation tarâdis-e gaz (#) Fr.: transformation de jauge A change of the fields of a gauge theory that does not change the value of any measurable quantity. → gauge; → transformation. |
transverse gauge gaz-e tarâgozar Fr.: jauge transverse Same as the → Coulomb gauge. → transverse; → gauge. |