Some special Kahler metrics on SL(2, C) and their holomorphic quantization

The group, SU(2) x SU(2) acts naturally on SL(2, C) by simultaneous right and left multiplication. We study the Kahler metrics invariant under this action using a global Kahler potential. The volume growth and various curvature quantities are then explicitly computable. Examples include metrics of positive, negative and zero Ricci curvature, and the one-lump metric of the CP1-model on a sphere. We then look at the holomorphic quantization of these metrics, where some physically satisfactory results on the dimension of the Hilbert space can be obtained. These give rise to an interesting geometrical conjecture, regarding the dimension of this space for general Stein manifolds in the semi-classical limit. (C) 2003 Elsevier B.V. All rights reserved.