Evolution of cosmological perturbation in reheating phase of the universe

被引:65
作者
Nambu, Y
Taruya, A
机构
[1] Department of Physics, Nagoya University
来源
PROGRESS OF THEORETICAL PHYSICS | 1997年 / 97卷 / 01期
关键词
D O I
10.1143/PTP.97.83
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The evolution of the cosmological perturbation during the oscillatory stage of the scalar field is investigated. For the power law potential of the inflaton field, the evolution equation of Mukhanov's gauge invariant variable is reduced to the Mathieu equation, and the density perturbation grows due to parametric resonance.
引用
收藏
页码:83 / 89
页数:7
相关论文
共 7 条
[1]   Evolution of cosmological perturbations in a stage dominated by an oscillatory scalar field [J].
Kodama, H ;
Hamazaki, T .
PROGRESS OF THEORETICAL PHYSICS, 1996, 96 (05) :949-970
[2]  
KODAMA H, 1991, PROG THEOR PHYS S, V78, P103
[3]  
KOFMAN L, 1994, PHYS REV LETT, V73, P1425
[4]  
MUKHANOV VF, 1988, ZH EKSP TEOR FIZ, V68, P1297
[5]   QUANTUM TREATMENT OF COSMOLOGICAL AXION PERTURBATIONS [J].
NAMBU, Y ;
SASAKI, M .
PHYSICAL REVIEW D, 1990, 42 (12) :3918-3924
[6]  
Nayfeh A.H., 1993, Introduction to Perturbation Techniques
[7]   UNIVERSE REHEATING AFTER INFLATION [J].
SHTANOV, Y ;
TRASCHEN, J ;
BRANDENBERGER, R .
PHYSICAL REVIEW D, 1995, 51 (10) :5438-5455