An exact inflationary solution in the chaotic model with non-minimal coupling

This paper presents a new exact inflationary solution to the non-minimMly coupled scalar field. The inflation is driven by the evolution of a scalar field with inflation potential V（φ） = （λ/4）φ4 ＋ b1φ2 ＋ b2 ＋ b3φ-2 ＋ b4φ-4. The spectral index of the scalar density fluctuations ns is consistent with the result of WMAP3 （Wilkinson Microwave Anisotropy Probe 3） for ACDM （Lambda-Cold Dark Matter）. This model relaxes the constraint to the quartic coupling constant. And it can enter smoothly into a radiation-dominated stage when inflation ends.

混沌暴涨模型的精确解(英文)

采用Friedmann-Robertson-Walker模型,提出了一个新的描述宇宙浑沌暴涨模型演化的Einstein场方程解,并计算了标量密度涨落的光谱指数ns和引力波光谱指数ng,得到ns的值很好地符合宇宙背景观测卫星观测到的值。其暴涨由带暴涨势V(φ)=-12m2φ2+λ4φ4的标量场的演化引起。这包含φf<φ<φ0的指数暴涨解,然后,由φ<φf很自然地向辐射代演化。