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}
}
  • M. Reginatto
  • Published 5 August 2009
  • Physics
  • Journal of Physics: Conference Series
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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