Central charge and renormalization in supersymmetric theories with vortices

Details Central charge and renormalization in supersymmetric theories with vortices Central charge and renormalization in supersymmetric theories with vortices

2005-02-09

arxiv.org/abs/hep-th/0502090v2

Phys.Rev. D71 (2005) 065006

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, revtex

Scientific paper

10.1103/PhysRevD.71.065006

Some quantum features of vortices in supersymmetric theories in 1+2 dimensions are studied in a manifestly supersymmetric setting of the superfield formalism. A close examination of the supercurrent that accommodates the central charge and super-Poincare charges in a supermultiplet reveals that there is no genuine quantum anomaly in the supertrace identity and in the supercharge algebra, with the central-charge operator given by the bare Fayet-Iliopoulos term alone. The central charge and the vortex spectrum undergo renormalization on taking the expectation value of the central-charge operator. It is shown that the vortex spectrum is exactly determined at one loop while the spectrum of the elementary excitations receives higher-order corrections.

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