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2005-12-31T04:01:23Z
2006-01-18T06:16:15Z
Parametrization of K-essence and Its Kinetic Term
Hui Li
Zong-Kuan Guo
Yuan-Zhong Zhang
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.
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How the Scalar Field of Unified Dark Matter Models Can Cluster
Cosmological scalar fields that mimic the $\Lambda CDM$ cosmological model
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[astro-ph/0601007] Parametrization of K-essence and Its Kinetic Term
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