广义DBI-Quintessence
Generalised DBI-Quintessence
摘要:
我们调查的相空间的一个精髓理论所管辖的广义版本的DBI行动,使用数值和分析方法相结合。额外的自由度导致了更丰富的相空间结构,其中场覆盖了状态参数空间的全部方程; $-1 \le ω\le 1$。我们发现许多非平凡的解决方案曲线的运动方程,这表明DBI的精髓是一个有趣的候选人,一个可行的k-本质模型。
英文摘要:
We investigate the phase space of a quintessence theory governed by a generalised version of the DBI action, using a combination of numeric and analytic methods. The additional degrees of freedom lead to a vastly richer phase space structure, where the field covers the full equation of state parameter space; $-1 \le ω\le 1$. We find many non-trivial solution curves to the equations of motion which indicate that DBI quintessence is an interesting candidate for a viable k-essence model.
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