$\Lambda(t)$ cosmology induced by a slowly varying Elko field

13 Dec 2016 Pereira S. H. Pinho S. S. A. da Silva J. M. Hoff Jesus J. F.

In this work the exact Friedmann-Robertson-Walker equations for an Elko spinor field coupled to gravity in an Einstein-Cartan framework are presented. The torsion functions coupling the Elko field spin-connection to gravity can be exactly solved and the FRW equations for the system assume a relatively simple form... (read more)

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  • GENERAL RELATIVITY AND QUANTUM COSMOLOGY
  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS