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Superconformal mechanics, black holes, and non-linear realizations

The OSp(2|2)-invariant planar dynamics of a D=4 superparticle near the horizon of a large mass extreme black hole is described by an N=2 superconformal mechanics, with the SO(2) charge being the superparticle's angular momentum. The {\it non-manifest} superconformal invariance of the superpotential term is shown to lead to a shift in the SO(2) charge by the value of its coefficient, which we identify as the orbital angular momentum. The full SU(1,1|2)-invariant dynamics is found from an extension to N=4 superconformal mechanics.

preprint1998arXivOpen access
J. A. de AzcarragaJ. M. IzquierdoJ. C. Perez BuenoP. K. Townsend
math-phmath.MPgr-qchep-th
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J. A. de AzcarragaJ. M. IzquierdoJ. C. Perez BuenoP. K. Townsend

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