翻訳と辞書 Words near each other ・ Fern, Buckinghamshire ・ Fern, Pleasants County, West Virginia ・ Fern, Wisconsin ・ Fern-C ・ Ferna ・ Fernacre ・ Fernagreevagh ・ Fermin Muguruza ・ Fermin Rocker ・ Fermin Torralba ・ Fermina Express ・ Fermina Márquez ・ Fermion ・ Fermion doubling ・ Fermionic condensate ・ Fermionic field ・ Fermium ・ Fermière Monument (Montreal) ・ Fermi–Dirac ・ Fermi–Dirac integral ・ Fermi–Dirac statistics ・ Fermi–Pasta–Ulam problem ・ Fermi–Pustyl'nikov model ・ Fermi–Ulam model ・ Fermi–Walker transport ・ Fermo ・ Fermo Camellini ・ Fermo con le mani ・ Fermo Dante Marchetti ・ Fermo displaced persons camp Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fermionic field ： ウィキペディア英語版 Fermionic field In quantum field theory, a fermionic field is a quantum field whose quanta are fermions; that is, they obey Fermi–Dirac statistics. Fermionic fields obey canonical anticommutation relations rather than the canonical commutation relations of bosonic fields. The most prominent example of a fermionic field is the Dirac field, which describes fermions with spin-1/2: electrons, protons, quarks, etc. The Dirac field can be described as either a 4-component spinor or as a pair of 2-component Weyl spinors. Spin-1/2 Majorana fermions, such as the hypothetical neutralino, can be described as either a dependent 4-component Majorana spinor or a single 2-component Weyl spinor. It is not known whether the neutrino is a Majorana fermion or a Dirac fermion (see also Neutrinoless double-beta decay for experimental efforts to determine this). ==Basic properties== Free (non-interacting) fermionic fields obey canonical anticommutation relations, i.e., involve the anticommutators = ''ab'' + ''ba'' rather than the commutators () = ''ab'' − ''ba'' of bosonic or standard quantum mechanics. Those relations also hold for interacting fermionic fields in the interaction picture, where the fields evolve in time as if free and the effects of the interaction are encoded in the evolution of the states. It is these anticommutation relations that imply Fermi–Dirac statistics for the field quanta. They also result in the Pauli exclusion principle: two fermionic particles cannot occupy the same state at the same time. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fermionic field」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.