含三个实标量场的暗能量模型

Dark energy model with 3 real scalar quantum fields

近年来型超新星的观测结果表明宇宙在加速膨胀,并且驱动宇宙加速膨胀的暗能量占据宇宙总能量密度的2/3。目前,物理学家们已经根据实验观测结果提出了一些暗能量的模型。这些模型的最主要的区别是它们预测了暗能量的不同的态方程,近而给出了不同的宇宙论,但是它们的态方程参数ω都限制在-1<ω<-1/3的范围内。然而最近的观测数据似乎支持暗能量的态方程参数ω由之前的ω>-1演化到当今时代的ω<-1。在本文中我们考虑了一个含三个实标量场的暗能量模型来实现上述情况.

For recent years, the observation of supernova has indicated that the cosmos is increasingly exanded,and dark energy,which accelerates the expansion of cosmos,occupies two thirds of the whole cosmic energy. At present ,some physicists have presented some models for dark energy, in which different sate epuations are provided with the same parameter ω（-1〈ω-1/3）. However, the recent observation seemingly supports ω〈-1. Here,the dark energy model with 3 real scalar quantum fields is taken into account to prove the above under the condition of ρm≤ρφ.