Physics
Scientific paper
Aug 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvd..54.2691c&link_type=abstract
Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 54, Issue 4, 15 August 1996, pp.2691-2698
Physics
3
Lower Dimensional Models, Minisuperspace Models, Canonical Formalism, Lagrangians, And Variational Principles
Scientific paper
In this work we propose a new method for constructing valid Hamiltonians for homogeneous spacetimes. Through a careful examination of the role played by spatial diffeomorphisms, we identify the ``correct'' momentum constraints in phase space; we also search for a supermetric Θαβγδ, which is the analogue of the Wheeler-DeWitt supermetric Gijkl in the case of the finite system under consideration. This way, a valid Hamiltonian (which, of course, need not be the only possible one) is constructed for the general type-V spacetime and the resulting system is quantized.
Christodoulakis Th.
Korfiatis E.
Paschos A.
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