Minimal bosonization of supersymmetry

Abstract

The minimal bosonization of supersymmetry in terms of one bosonic degree of freedom is considered. A nontrivial relationship of the construction to the Witten supersymmetric quantum mechanics is illustrated with the help of the simplest $N=2$ SUSY system realized on the basis of the ordinary (undeformed) bosonic oscillator. It is shown that the generalization of such a construction to the case of Vasiliev deformed bosonic oscillator gives a supersymmetric extension of the 2-body Calogero model in the phase of exact or spontaneously broken $N=2$ SUSY. The construction admits an extension to the case of the OSp(2$|$2) supersymmetry, and, as a consequence, $osp(2|2)$ superalgebra is revealed as a dynamical symmetry algebra for the bosonized supersymmetric Calogero model. Realizing the Klein operator as a parity operator, we construct the bosonized Witten supersymmetric quantum mechanics. Here the general case of the corresponding bosonized $N=2$ SUSY is given by an odd function being a superpotential.

12 pages, LaTeX, to appear in Mod. Phys. Lett. A

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