Generalized Quantum Theory of Bianchi IX Cosmologies

Details Generalized Quantum Theory of Bianchi IX Cosmologies Generalized Quantum Theory of Bianchi IX Cosmologies

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..aprh10003c&link_type=abstract

American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #H10.003

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Scientific paper

We apply sum-over-histories generalized quantum theory to the closed homogeneous minisuperspace Bianchi IX cosmological model. We sketch how the probabilities in decoherent sets of alternative, coarse-grained histories of this model universe are calculated. We consider in particular, the probabilities for classical evolution in a suitable coarse-graining. For a restricted class of initial conditions and coarse grainings we exhibit the approximate decoherence of alternative histories in which the universe behaves classically and those in which it does not, illustrating the prediction that these universes will evolve in an approximately classical manner with a probability near unity.

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