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2012-12-13
Einstein-Cartan Theory and Gauge Symmetry
Miguel Socolovsky
文献摘要
We argue that the non gauge invariant coupling between torsion and the Maxwell or Yang-Mills fields in Einstein-Cartan theory can not be ignored. Arguments based in the existence of normal frames in neighbourhoods, and an approximation to a \delta-function, lead to gauge invariant observables.
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