中国物理B ›› 2006, Vol. 15 ›› Issue (12): 2850-2855.doi: 10.1088/1009-1963/15/12/014

• GENERAL • 上一篇    下一篇

Late-time evolution of massive Dirac fields in the Kerr background

贺 喜, 荆继良   

  1. Institute of Physics and Physics Department, Hunan Normal University, Changsha 410081, China
  • 收稿日期:2006-03-17 修回日期:2006-04-25 出版日期:2006-12-20 发布日期:2006-12-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10473004), the FANEDD (Grant No 200317), the SRFDP (Grant No 20040542003), the Hunan Provincial Natural Science Foundation of China (Grant No 05JJ0001).

Late-time evolution of massive Dirac fields in the Kerr background

He Xi(贺喜) and Jing Ji-Liang(荆继良)†   

  1. Institute of Physics and Physics Department, Hunan Normal University, Changsha 410081, China
  • Received:2006-03-17 Revised:2006-04-25 Online:2006-12-20 Published:2006-12-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10473004), the FANEDD (Grant No 200317), the SRFDP (Grant No 20040542003), the Hunan Provincial Natural Science Foundation of China (Grant No 05JJ0001).

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摘要： The late-time tail of massive Dirac fields in Kerr spacetime is investigated by using the black hole Green function. It is shown that in the intermediate late times there are two kinds of new properties. The one is that the asymptotic behaviour of the massive Dirac fields is dominated by a decaying tail without any oscillation, which is different from the oscillatory decaying tails of the massive scalar field; the other is that the dumping exponent for the massive Dirac field depends not only on the multiple number of the wave mode and the mass of the Dirac particle but also on the rotating parameter of the black hole.

Abstract: The late-time tail of massive Dirac fields in Kerr spacetime is investigated by using the black hole Green function. It is shown that in the intermediate late times there are two kinds of new properties. The one is that the asymptotic behaviour of the massive Dirac fields is dominated by a decaying tail without any oscillation, which is different from the oscillatory decaying tails of the massive scalar field; the other is that the dumping exponent for the massive Dirac field depends not only on the multiple number of the wave mode and the mass of the Dirac particle but also on the rotating parameter of the black hole.

Key words: black hole, late-time evolution, massive Dirac field

中图分类号:  (Physics of black holes)

  • 04.70.-s
97.60.Lf (Black holes)