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arXiv · 0806.3890

Dark Energy Model with Spinor Matter and Its Quintom Scenario

Yi-Fu Cai·Jing Wang
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Abstract

A class of dynamical dark energy models, dubbed Spinor Quintom, can be constructed by a spinor field $ψ$ with a nontraditional potential. We find that, if choosing suitable potential, this model is able to allow the equation-of-state to cross the cosmological constant boundary without introducing any ghost fields. In a further investigation, we show that this model is able to mimic a perfect fluid of Chaplygin gas with $p=-c/ρ$ during the evolution, and also realizes the Quintom scenario with its equation-of-state across -1.

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Yi-Fu Cai, Jing Wang. 2008-07-01. Dark Energy Model with Spinor Matter and Its Quintom Scenario. https://doi.org/10.1088/0264-9381%2F25%2F16%2F165014

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