http://arxiv.org/abs/1705.03958
We consider the eternal inflation scenario with the additional element of an objective collapse of the wave function. The incorporation of this new agent to the traditional inflationary setting responds to the necessity of addressing the lack of an explanation for the generation of the primordial anisotropies and inhomogeneities, starting from a perfectly symmetric background and invoking symmetric dynamics. We adopt the continuous spontaneous localization model, in the context of inflation, as the dynamical reduction mechanism that generates the primordial inhomogeneities. Furthermore, when enforcing the objective reduction mechanism, the condition for eternal inflation can be bypassed. In particular, the collapse mechanism incites the wave function, corresponding to the inflaton, to localize itself around the zero mode of the field. Then, the zero mode will evolve essentially unperturbed, driving inflation to an end in any region of the Universe where inflation occurred. Also, our approach achieves a primordial spectrum with an amplitude and shape consistent with the one that best fits the observational data.
G. Leon
Fri, 12 May 17
41/55
Comments: 9 pages plus references
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