paper

Addressing the issue of non-unitarity in anisotropic quantum cosmology

arXiv:1410.2718 · doi:10.1103/PhysRevD.90.104001

Abstract

In the present work we show that the widely believed pathology of the non-unitarity of anisotropic quantum cosmological models cannot be a generic problem. We exhibit a non trivial example, a Bianchi-I model with an ultrarelativistic fluid, that has a well behaved time independent norm. We also show that a suitable operator ordering should produce time independent norms for the wave packets in the case of other more realistic fluids as well.

arXiv comment6 two column pages, no figure, accepted for publication in Physical Review D

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