Cosmology with quantum matter and a classical gravitational field: the approach of configuration-space ensembles
@article{Reginatto2009CosmologyWQ, title={Cosmology with quantum matter and a classical gravitational field: the approach of configuration-space ensembles}, author={Marcel Reginatto}, journal={Journal of Physics: Conference Series}, year={2009}, volume={442}, pages={012009} }
I consider the formulation of hybrid cosmological models that consists of a classical gravitational field interacting with a quantized massive scalar field in the formalism of ensembles on configuration space. This is a viable approach that provides an alternative to semiclassical gravity. I discuss a particular, highly nonclassical solution in two approximations, minisuperspace and spherically-symmetric midisuperspace. In both cases, the coupling of the quantum scalar field and classical…
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