A String-Inspired Quintom Model Of Dark Energy

Yi-fu Cai, Mingzhe Li, Jian-Xin Lu +3

We propose in this paper a quintom model of dark energy with a single scalar field $\varphi$ given by the lagrangian $\mathcal{L}=-V(\varphi )\sqrt{1-{\alpha }^{\prime }{\nabla }_{\mu }\varphi {\nabla }^{\mu }\varphi +{\beta }^{\prime }\varphi \square \varphi }$.…