Comment on covariant duality symmetric actions
Abstract
We demonstrate that an action proposed by A. Khoudeir and N. R. Pantoja in Phys. Rev. D53, 5974 (1996) for endowing Maxwell theory with manifest electric--magnetic duality symmetry contains, besides the Maxwell field, additional propagating vector degrees of freedom. Hence it cannot be considered as a duality symmetric action for a single abelian gauge field.
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