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New developments in the quantization of supersymmetric solitons (kinks, vortices and monopoles)

Anton Rebhan·Peter van Nieuwenhuizen·Robert Wimmer
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Abstract

We discuss the one-loop quantum corrections to the mass M and central charge Z of supersymmetric solitons: the kink, the vortex and the monopole. Contrary to previous expectations and published results, in each of these cases there are nonvanishing quantum corrections to the mass. For the N=1 kink and the N=2 monopole a new anomaly in Z rescues BPS saturation (M=Z); for the N=2 vortex, BPS saturation is rescued for two reasons: (i) the quantum fluctuations of the Higgs field acquire a nontrivial phase due to the winding of the classical solution, and (ii) a fermionic zero mode used in the literature is shown not to be normalizable.

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Anton Rebhan, Peter van Nieuwenhuizen, Robert Wimmer. 2004-04-28. New developments in the quantization of supersymmetric solitons (kinks, vortices and monopoles). https://arxiv.org/abs/hep-th/0404223

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