Group averaging, positive definiteness and superselection sectors - INSPIRE

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Group averaging, positive definiteness and superselection sectors

Jorma Louko
(
- Nottingham U.
)

Dec, 2005

9 pages

Part of Constrained dynamics and quantum gravity. Proceedings, 4th Meeting, QG'05, Gala Gonone, Italy, September 12-16, 2005

Published in:

J.Phys.Conf.Ser. 33 (2006) 142-149

Contribution to:

4th Meeting on Constrained Dynamics and Quantum Gravity (QG05)

e-Print:

gr-qc/0512076 [gr-qc]

DOI:

10.1088/1742-6596/33/1/013

View in:

ADS Abstract Service

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Abstract: (arXiv)

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.

Note:

9 pages, uses jpconf. Talk given at the Fourth Meeting on Constrained Dynamics and Quantum Gravity (Cala Gonone, Sardinia, Italy, 12--16 September 2005)

References(30)

Figures(0)

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