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Ghost instabilities of cosmological models with vector fields nonminimally coupled to the curvature
Burak Himmetoglu, Carlo R. Contaldi, Marco Peloso
We prove that many cosmological models characterized by vectors nonminimally coupled to the curvature (such as the Turner-Widrow mechanism for the production of magnetic fields dur…
Quantum Corrections to the Cosmological Evolution of Conformally Coupled Fields
Jose A. R. Cembranos, Keith A. Olive, Marco Peloso +1
Because the source term for the equations of motion of a conformally coupled scalar field, such as the dilaton, is given by the trace of the matter energy momentum tensor, it is co…
The Origin of the Universe as Revealed Through the Polarization of the Cosmic Microwave Background
S. Dodelson, R. Easther, S. Hanany +61
Modern cosmology has sharpened questions posed for millennia about the origin of our cosmic habitat. The age-old questions have been transformed into two pressing issues primed for…