Projective Quantum Mechanics

Details Projective Quantum Mechanics Projective Quantum Mechanics

2003-04-21

arxiv.org/abs/hep-th/0304175v1

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, LaTeX

Scientific paper

We study the quantisation of complex, finite-dimensional, compact, classical phase spaces C, by explicitly constructing Hilbert-space vector bundles over C. We find that these vector bundles split as the direct sum of two holomorphic vector bundles: the holomorphic tangent bundle T(C), plus a complex line bundle N(C). Quantum states (except the vacuum) appear as tangent vectors to C. The vacuum state appears as the fibrewise generator of N(C). Holomorphic line bundles N(C) are classified by the elements of Pic(C), the Picard group of C. In this way Pic(C) appears as the parameter space for nonequivalent vacua. Our analysis is modelled on, but not limited to, the case when C is complex projective space.

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