http://arxiv.org/abs/1711.10408
We investigate the possibility that the inflaton, in particular in conformal inflation models, is also a chameleon, i.e. that it couples to the energy density of some heavy non-relativistic matter present during inflation. We find new and interesting attractor behaviours, either prolonging inflation, or changing the observables $n_s,r$, depending on the sign of the chameleon coupling exponent.
H. Bernardo, R. Costa, H. Nastase, et. al.
Wed, 29 Nov 17
12/69
Comments: 28 pages, 11 figures
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