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- Gribov_ambiguity abstract "In gauge theory, especially in non-abelian gauge theories, we often encounter global problems when gauge fixing. Gauge fixing means choosing a representative from each gauge orbit. The space of representatives is a submanifold and represents the gauge fixing condition. Ideally, every gauge orbit will intersect this submanifold once and only once. Unfortunately, this is often impossible globally for non-abelian gauge theories because of topological obstructions and the best that can be done is make this condition true locally. A gauge fixing submanifold may not intersect a gauge orbit at all or it may intersect it more than once. This is called a Gribov ambiguity (named after Vladimir Gribov).Gribov ambiguities lead to a nonperturbative failure of the BRST symmetry, among other things.A way to resolve the problem of Gribov ambiguity is to restrict the relevant functional integrals to a single Gribov region whose boundary is called a Gribov horizon.See also the original paper of Gribov, Heinzl's paper with a quantum-mechanical toy example, and the second slide of Kondo's presentation.".
- Gribov_ambiguity wikiPageID "2001125".
- Gribov_ambiguity wikiPageRevisionID "521365171".
- Gribov_ambiguity hasPhotoCollection Gribov_ambiguity.
- Gribov_ambiguity subject Category:Quantum_field_theory.
- Gribov_ambiguity comment "In gauge theory, especially in non-abelian gauge theories, we often encounter global problems when gauge fixing. Gauge fixing means choosing a representative from each gauge orbit. The space of representatives is a submanifold and represents the gauge fixing condition. Ideally, every gauge orbit will intersect this submanifold once and only once.".
- Gribov_ambiguity label "Gribov ambiguity".
- Gribov_ambiguity sameAs m.06d2z5.
- Gribov_ambiguity sameAs Q5608550.
- Gribov_ambiguity sameAs Q5608550.
- Gribov_ambiguity wasDerivedFrom Gribov_ambiguity?oldid=521365171.
- Gribov_ambiguity isPrimaryTopicOf Gribov_ambiguity.