Revealing Quintessence

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  • 13 August 1998
Abstract
Distance measurements to Type 1a supernovae (SNe1a) indicate that the Universe is accelerating and that two-thirds of the critical energy density exists in a component with negative pressure. If that component is an evolving scalar field (`quintessence'), accurate (5% or so) distance measurements to SNe1a can be used to reconstruct the scalar-field potential. We derive the reconstruction equations and demonstrate the feasibility of this approach by Monte-Carlo simulation.

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