Planar Super-Landau Models Revisited
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چکیده
We use the methods of PT -symmetric quantum theory to find a oneparameter family of ISU(1|1)-invariant planar super-Landau models with positive norm, uncovering an ‘accidental’, and generically spontaneouslybroken, N=2 worldline supersymmetry. In contrast to standard models of supersymmetric quantum mechanics, it is the norms of states rather than their energies that are parameter-dependent, and the spectrum changes discontinuously in the limit that worldline supersymmetry is restored. We find a Sugawara-type representations for the worldline supersymmetry charges in terms of the ISU(1|1) charges. 1 [email protected] 2 [email protected] 3 [email protected] 4 [email protected]
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تاریخ انتشار 2006