Addressing the issue of nonunitarity in anisotropic quantum cosmology
Addressing the issue of nonunitarity in anisotropic quantum cosmology
In the present work we show that the widely believed pathology of the nonunitarity of anisotropic quantum cosmological models cannot be a generic problem. We exhibit a nontrivial example, a Bianchi-I model with an ultrarelativistic fluid, that has a well-behaved time independent norm. We also show that a suitable operator …