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| Título: | Fermions in Hybrid LQC |
Autor: | Mena Marugán, Guillermo A. CSIC ORCID; Elizaga Navascués, Beatriz CSIC ORCID; Martín-Benito, Mercedes CSIC ORCID | Fecha de publicación: | 3-jul-2017 | Citación: | Chair of Theory of Relativity and Gravitation (2017) | Resumen: | We introduce Dirac fields in hybrid loop quantum cosmology and discuss their treatment as primordial perturbations, additional to those of the geometry and the inflaton field. Adopting a Born-Oppenheimer ansatz, we show how to deduce a Schrodinger equation that dictates the quantum evolution of these fermionic perturbations. Remarkably, such evolution is unitary, and couples the fermion field with an infinite sequence of quantum moments of the homogeneous geometry. We also investigate issues related with the quantum backreaction produced by the Dirac fields. | Descripción: | Conferencia invitada. -- Presentación de 15 diapositivas. -- LOOPS'17, Institute of Theoretical Physics, University of Warsaw, Warsaw, Poland, July 3rd 2017. -- http://ktwig.fuw.edu.pl/1,1,98,99,quantum-cosmology.html | URI: | http://hdl.handle.net/10261/166386 |
| Aparece en las colecciones: | (CFMAC-IEM) Comunicaciones congresos |
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| Fermions.pdf | 5,78 MB | Unknown | Visualizar/Abrir |
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