fter reviewing Gribov ambiguity of non-Abelian gauge theories, a phenomenon relatedto the topology of the bundle of gauge connections, we show that there is a similar feature fornoncommutative QED over Moyal space, despite the structure group being Abelian, and weexhibit an infinite number of solutions for the equation of Gribov copies. This is a genuineeffect of noncommutative geometry which disappears when the noncommutative parametervanishes.
The Gribov problem in noncommutative gauge theory
Kurkov M.;Vitale Patrizia
2018
Abstract
fter reviewing Gribov ambiguity of non-Abelian gauge theories, a phenomenon relatedto the topology of the bundle of gauge connections, we show that there is a similar feature fornoncommutative QED over Moyal space, despite the structure group being Abelian, and weexhibit an infinite number of solutions for the equation of Gribov copies. This is a genuineeffect of noncommutative geometry which disappears when the noncommutative parametervanishes.File in questo prodotto:
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