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Super-Calogero model with OSp(2|2) supersymmetry : is the construction unique?

Pijush K. Ghosh
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Abstract

We show that the construction of super-Calogero model with OSp(2|2) supersymmetry is not unique. In particular, we find a new co-ordinate representation of the generators of the OSp(2|2) superalgebra that appears as the dynamical supersymmetry of the rational super-Calogero model. Both the quadratic and the cubic Casimir operators of the OSp(2|2) are necessarily zero in this new representation, while they are, in general, nonzero for the super-Calogero model that is currently studied in the literature. The Scasimir operator that exists in the new co-ordinate representation is not present in the case of the existing super-Calogero model. We also discuss the case of N free superoscillators and superconformal quantum mechanics for which the same conclusions are valid.

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Pijush K. Ghosh. 2003-12-08. Super-Calogero model with OSp(2|2) supersymmetry : is the construction unique?. https://doi.org/10.1016/j.nuclphysb.2003.12.011

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