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arxiv: hep-th/9607182 · v1 · submitted 1996-07-23 · ✦ hep-th · gr-qc

Electric-Magnetic Black Hole Duality

classification ✦ hep-th gr-qc
keywords blackdualityelectricmagneticactionactionsarbitrarybackground
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We generalize duality invariance for the free Maxwell action in an arbitrary background geometry to include the presence of electric and magnetic charges. In particular, it follows that the actions of equally charged electric and magnetic black holes are equal.

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