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Physics Letters B
We study the cosmological evolution for a universe in the presence of a continuous tower of massive scalar fields which can drive the current phase of accelerated expansion of the universe and, in addition, can contribute as a dark matter component. The tower consists of a continuous set of massive scalar fields with a gaussian mass distribution. We show that, in a certain region of the parameter space, the heavy modes of the tower (those with masses much larger than the Hubble expansion rate)doi:10.1016/j.physletb.2013.04.051 fatcat:orgk5m7bufcfvcadxclveex2te