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- Four-fermion_interactions abstract "In quantum field theory, fermions are described by anticommuting spinor fields. A four-fermion interaction describes a local interaction between four fermionic fields at a point. Local here means that it all happens at the same spacetime point. This might be an effective field theory or it might be fundamental.Some examples are the following:Fermi's theory of the weak interaction. The interaction term has a V-A (vector minus axial) form.The Gross-Neveu model. This is a four-fermi theory of Dirac fermions without chiral symmetry and as such, it may or may not be massive.The Thirring model. This is a four-fermi theory of fermions with a vector coupling.The Nambu-Jona-Lasinio model. This is a four-fermi theory of Dirac fermions with chiral symmetry and as such, it has no bare mass.A nonrelativistic example is the BCS theory at large length scales with the phonons integrated out so that the force between two dressed electrons is approximated by a contact term.In four space-time dimensions, such theories are not renormalisable.".
- Four-fermion_interactions wikiPageID "1955842".
- Four-fermion_interactions wikiPageLength "1460".
- Four-fermion_interactions wikiPageOutDegree "26".
- Four-fermion_interactions wikiPageRevisionID "636868663".
- Four-fermion_interactions wikiPageWikiLink Anticommutativity.
- Four-fermion_interactions wikiPageWikiLink BCS_theory.
- Four-fermion_interactions wikiPageWikiLink Bare_mass.
- Four-fermion_interactions wikiPageWikiLink Category:Quantum_field_theory.
- Four-fermion_interactions wikiPageWikiLink Chirality_(physics).
- Four-fermion_interactions wikiPageWikiLink Contact_term.
- Four-fermion_interactions wikiPageWikiLink Dirac_fermion.
- Four-fermion_interactions wikiPageWikiLink Dressed_electron.
- Four-fermion_interactions wikiPageWikiLink Effective_field_theory.
- Four-fermion_interactions wikiPageWikiLink Euclidean_vector.
- Four-fermion_interactions wikiPageWikiLink Fermion.
- Four-fermion_interactions wikiPageWikiLink Fermis_interaction.
- Four-fermion_interactions wikiPageWikiLink Field_(physics).
- Four-fermion_interactions wikiPageWikiLink Gross–Neveu_model.
- Four-fermion_interactions wikiPageWikiLink Nambu–Jona-Lasinio_model.
- Four-fermion_interactions wikiPageWikiLink Pseudovector.
- Four-fermion_interactions wikiPageWikiLink Quantum_field_theory.
- Four-fermion_interactions wikiPageWikiLink Renormalization.
- Four-fermion_interactions wikiPageWikiLink Spacetime.
- Four-fermion_interactions wikiPageWikiLink Spinor.
- Four-fermion_interactions wikiPageWikiLink Theory_of_relativity.
- Four-fermion_interactions wikiPageWikiLink Thirring_model.
- Four-fermion_interactions wikiPageWikiLink Weak_interaction.
- Four-fermion_interactions wikiPageWikiLinkText "Four-fermion interactions".
- Four-fermion_interactions wikiPageWikiLinkText "four-fermion interactions".
- Four-fermion_interactions auto "yes".
- Four-fermion_interactions date "December 2009".
- Four-fermion_interactions wikiPageUsesTemplate Template:Four-fermion_interactions.
- Four-fermion_interactions wikiPageUsesTemplate Template:Quantum-stub.
- Four-fermion_interactions wikiPageUsesTemplate Template:Quantum_field_theories.
- Four-fermion_interactions wikiPageUsesTemplate Template:Unreferenced.
- Four-fermion_interactions subject Category:Quantum_field_theory.
- Four-fermion_interactions type Mechanic.
- Four-fermion_interactions type Physic.
- Four-fermion_interactions comment "In quantum field theory, fermions are described by anticommuting spinor fields. A four-fermion interaction describes a local interaction between four fermionic fields at a point. Local here means that it all happens at the same spacetime point. This might be an effective field theory or it might be fundamental.Some examples are the following:Fermi's theory of the weak interaction. The interaction term has a V-A (vector minus axial) form.The Gross-Neveu model.".
- Four-fermion_interactions label "Four-fermion interactions".
- Four-fermion_interactions sameAs Q5474910.
- Four-fermion_interactions sameAs Interacción_de_cuatro_fermiones.
- Four-fermion_interactions sameAs m.068s1r.
- Four-fermion_interactions sameAs Q5474910.
- Four-fermion_interactions wasDerivedFrom Four-fermion_interactions?oldid=636868663.
- Four-fermion_interactions isPrimaryTopicOf Four-fermion_interactions.