MINI-WORKSHOP ON PARTICLE PHYSICS PHENOMENOLOGY. Understanding of Dark Energy - An Alternative Way. Shih-Hao Ho (NTHU) 2006/06/06. Outline. Introduction Some Dynamical Models for Dark Energy Single Scalar Field Quintessence Phantom Two Scalar Field Quintom One Complex Scalar Field
and assume the field is homogeneous.
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or equivalently ,
and the homogeneity of field and , we can have the equation of motion
and for spintessence and hessence respectively.