Reconstructing a String-Inspired Quintom Model of Dark Energy

Abstract

In this paper, we develop a simple method for the reconstruction of the string-inspired dark energy model with the lagrangian $\mathcal{L}=-V(\varphi )\sqrt{1-{\alpha }^{\prime }{\nabla }_{\mu }\varphi {\nabla }^{\mu }\varphi +{\beta }^{\prime }\varphi \square \varphi }$ given by Cai et. al., which may allow the equation-of-state parameter cross the cosmological constant boundary $(w=-1)$. We reconstruct this model in the light of three forms of parametrization for dynamical dark energy.

8pages, 6figures

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• Can dark energy evolve to the Phantom?
• WMAP constraints on low redshift evolution of dark energy
• Dark Energy Model with Spinor Matter and Its Quintom Scenario
• Shape invariance method for quintom model in the bent brane background