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arxiv: astro-ph/0601007 · v2 · pith:CDUSSLGRnew · submitted 2005-12-31 · 🌌 astro-ph

Parametrization of K-essence and Its Kinetic Term

classification 🌌 astro-ph
keywords k-essencekinetictermequationnon-canonicalstateadoptingconstruct
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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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