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Two-Centered Magical Charge Orbits

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arxiv 1101.3496 v3 pith:BIMJ3A52 submitted 2011-01-18 hep-th

classification hep-th
keywords orbitstwo-centeredchargefourgroupinvariantmagicalblack-hole
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We determine the two-centered generic charge orbits of magical N = 2 and maximal N = 8 supergravity theories in four dimensions. These orbits are classified by seven U-duality invariant polynomials, which group together into four invariants under the horizontal symmetry group SL(2,R). These latter are expected to disentangle different physical properties of the two-centered black-hole system. The invariant with the lowest degree in charges is the symplectic product (Q1,Q2), known to control the mutual non-locality of the two centers.

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