Geometry of Coherent States : Some Examples of Calculations of Chern-Characters

Details Geometry of Coherent States : Some Examples of Calculations of Chern-Characters Geometry of Coherent States : Some Examples of Calculations of Chern-Characters

2001-08-27

arxiv.org/abs/hep-ph/0108219v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex File 1 + 17 pages, no figures

Scientific paper

First we make a brief review of coherent states and prove that the resolution of unity can be obtained by the 1-st Chern character of some bundle. Next we define a Grassmann manifold for a set of coherent states and construct the pull-back bundle making use of a projector from the parameter space to this Grassmann manifold. We study some geometric properties (Chern-characters mainly) of these bundles. Although the calculations of Chern-characters are in general not easy, we can perform them for the special cases. In this paper we report our calculations and propose some interesting problems to be solved in the near future.

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