Group Averaging, Positive Definiteness and Superselection Sectors
نویسنده
چکیده
I discuss group averaging as a method for quantising constrained systems whose gauge group is a noncompact Lie group. Focussing on three case studies, I address the convergence of the averaging, possible indefiniteness of the prospective physical inner product and the emergence of superselection sectors.
منابع مشابه
ar X iv : g r - qc / 0 51 20 76 v 1 1 3 D ec 2 00 5 Group averaging , positive definiteness and superselection sectors 1
I discuss group averaging as a method for quantising constrained systems whose gauge group is a noncompact Lie group. Focussing on three case studies, I address the convergence of the averaging, possible indefiniteness of the prospective physical inner product and the emergence of superselection sectors.
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