Higher Spin Conformal Symmetry for Matter Fields in 2+1 Dimensions
arXiv:hep-th/0103208
Abstract
A simple realization of the conformal higher spin symmetry on the free massless matter fields is given in terms of an auxiliary Fock module both in the flat and case. The duality between non-unitary field-theoretical representations of the conformal algebra and the unitary (singleton--type) representations of the conformal algebra is formulated explicitly in terms of a certain Bogolyubov transform.
Minor corrections: report number is changed