中国物理B ›› 2009, Vol. 18 ›› Issue (4): 1362-1366.doi: 10.1088/1674-1056/18/4/013
刘雄伟, 杨树政, 陈世武, 林恺
Liu Xiong-Wei(刘雄伟)†, Yang Shu-Zheng(杨树政)‡, Chen Shi-Wu(陈世武), and Lin Kai(林恺)
摘要: This paper presents a new exact inflationary solution to the non-minimally coupled scalar field. The inflation is driven by the evolution of a scalar field with inflation potential V(φ ) = (λ/ 4)φ4+ b1 φ2+ b2 + b3 φ-2 + b4 φ-4. The spectral index of the scalar density fluctuations ns is consistent with the result of WMAP3 (Wilkinson Microwave Anisotropy Probe 3) for λCDM (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.
中图分类号: (Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))