Conformal geometry of the supercotangent and spinor bundles

Details Conformal geometry of the supercotangent and spinor bundles Conformal geometry of the supercotangent and spinor bundles

2010-04-09

arxiv.org/abs/1004.1595v2

Physics

Mathematical Physics

45 pages, minor improvement of section 5. Accepted in Comm. Math. Phys

Scientific paper

We establish, via geometric quantization of the supercotangent bundle sM of (M,g), a correspondence between its conformal geometry and those of the spinor bundle. In particular, the Kosmann Lie derivative of spinors is obtained by quantization of the comoment map, associated to the new Hamiltonian action of conf(M,g) on sM. We study then the conf(M,g)-module structures induced on the space of differential operators acting on spinor densities and on its spaces of symbols (functions on sM). In the conformally flat case, we classify their conformal invariants, including the conformally odd powers of the Dirac operator.

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