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Creator: e-Print Repository

Creation date: 2008-10-01T18:30:02Z

Modification date: 2008-10-03T07:30:34Z

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Title: Parametrization of K-essence and Its Kinetic Term

Abstract: We construct the non-canonical kinetic term of a k-essence field directly from the effective equation of state function $w_k(z)$, which describes the properties of the dark energy. Adopting the usual parametrizations of equation of state we numerically reproduce the shape of the non-canonical kinetic term and discuss some features of the constructed form of k-essence.

Creation date: 2005-12-31T04:01:23Z

Modification date: 2006-01-18T06:16:15Z

Creator: Hui Li .

Creator: Zong-Kuan Guo .

Creator: Yuan-Zhong Zhang .

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