Twisted Gauge Theories

  title={Twisted Gauge Theories},
  author={Paolo Aschieri and Marija V. Dimitrijevi{\'c} and Frank H. Meyer and Stefan Schraml and Julius Wess},
Gauge theories on a space-time that is deformed by the Moyal-Weyl product are constructed by twisting the coproduct for gauge transformations. This way a deformed Leibniz rule is obtained, which is used to construct gauge invariant quantities. The connection will be enveloping algebra valued in a particular representation of the Lie algebra. This gives rise to additional fields, which couple only weakly via the deformation parameter θ and reduce in the commutative limit to free fields… CONTINUE READING
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