Observed Smooth Energy Fitted by Parametrized Quintessence

Details Observed Smooth Energy Fitted by Parametrized Quintessence Observed Smooth Energy Fitted by Parametrized Quintessence

2001-10-22

arxiv.org/abs/astro-ph/0110489v1

eConf C010630:P404,2001

Astronomy and Astrophysics

Astrophysics

contribution to Snowmass2001 proceedings

Scientific paper

This paper proposes two phenomenological quintessence potentials with parameters fitted to the presently observed ratio $\rat$ of smooth energy to clustered mass and limits on the equation of state parameter $w_Q(a)=P/\rhoq$, 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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