Observed Smooth Energy Fitted by Parametrized Quintessence
Abstract
This paper proposes two phenomenological quintessence potentials with parameters fitted to the presently observed ratio of smooth energy to clustered mass and limits on the equation of state parameter wQ(a)=P/, for which the quintessence potential is now slow- or fast-rolling. These two potentials are intended to illustrate rather different quintessence phenomenology since tracking and into the near future. Neither can be a fundamental potential derivable from present-day string theory.
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