中国物理B ›› 2004, Vol. 13 ›› Issue (5): 583-588.doi: 10.1088/1009-1963/13/5/004

• GENERAL • 上一篇    下一篇

Chaotic evolution of the coupled scalar fields system during inflation

陈菊华, 王永久   

  1. College of Physics and Information Science, Institute of Physics, Hunan Normal University, Changsha 410081, China
  • 收稿日期:2003-09-04 修回日期:2003-11-06 出版日期:2005-07-06 发布日期:2005-07-06
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No 2003CB716300).

Chaotic evolution of the coupled scalar fields system during inflation

Chen Ju-Hua (陈菊华), Wang Yong-Jiu (王永久)   

  1. College of Physics and Information Science, Institute of Physics, Hunan Normal University, Changsha 410081, China
  • Received:2003-09-04 Revised:2003-11-06 Online:2005-07-06 Published:2005-07-06
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No 2003CB716300).

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摘要： In this paper we consider two coupled scalar fields during the inflation as a dynamical system. With the Poincaré section method, we investigate the evolution of the coupled scalar fields system. We find that the evolution of the system changes from a regular motion into a chaotic motion when the energy density and the coupling constant of the system increase.

Abstract: In this paper we consider two coupled scalar fields during the inflation as a dynamical system. With the Poincaré section method, we investigate the evolution of the coupled scalar fields system. We find that the evolution of the system changes from a regular motion into a chaotic motion when the energy density and the coupling constant of the system increase.

Key words: chaotic evolution, coupled scalar fields system

中图分类号:  (High-dimensional chaos)

  • 05.45.Jn
98.80.Jk (Mathematical and relativistic aspects of cosmology)