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Concept information

high-energy astrophysics > particle astrophysics > elementary particle > fermion > fermion field
theoretical physics aspects > field theory > quantum field theory > fermion field

Terme préférentiel

fermion field  

Définition(s)

  • 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; observing neutrinoless double-beta decay experimentally would settle this question. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fermionic_field)

Concept(s) générique(s)

Synonyme(s)

  • fermionic field

Traductions

URI

http://data.loterre.fr/ark:/67375/MDL-DF4ZLMH2-C

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RDF/XML TURTLE JSON-LD Dernière modif. 24/04/2023