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Killing gauge for the 0-brane on AdS2×S2AdS_2 \times S^2 coset superspace

Abstract

How to gauge fix \k-symmetry for the super 0-brane action on AdS2×S2AdS_2 \times S^2 in Killing gauge properly is discussed in order to find the superconformal mechanics which describes super 0-brane probes moving on AdS2×S2AdS_2 \times S^2. The dependence on the coordinate frame for the proper Killing gauge is considered and the subtleties of gauge-fixing \k-symmetry in Killing gauge are analysed explicitly. It is found that the Killing gauge works indeed without the imcompatibility if the magnetic charge of the super 0-brane is nonzero.Comment: 14 pages, LaTeX2

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