Coarse-graining approach to quantum cosmology
We consider a Friedmann-Robertson-Walker model with both classical radiation and a massive (conformally coupled) quantum scalar field in the framework of quantum cosmology. We define a density matrix and introduce a notion of "relevance" which splits this density matrix into a "releva...
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| Autores principales: | Calzetta, E., Castagnino, M., Scoccimarro, R. |
|---|---|
| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_05562821_v45_n8_p2806_Calzetta |
| Aporte de: |
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