Instability of massive scalar fields in Kerr-Newman spacetime

Hironobu Furuhashi, Yasusada Nambu

研究成果: ジャーナルへの寄稿学術誌査読

152 被引用数 (Scopus)

抄録

We investigate the instability of charged massive scalar fields in Kerr-Newman spacetime. Due to the super-radiant effect of the background geometry, the bound state of the scalar field is unstable, and its amplitude grows in time. By solving the Klein-Gordon equation of the scalar field as an eigenvalue problem, we numerically obtain the growth rate of the amplitude of the scalar field. Although the dependence of the scalar field mass and the scalar field charge on this growth rate agrees with the result of the analytic approximation, the maximum value of the growth rate is three times larger than that of the analytic approximation. We also discuss the effect of the electric charge on the instability of the scalar field.

本文言語英語
ページ(範囲)983-995
ページ数13
ジャーナルProgress of Theoretical Physics
112
6
DOI
出版ステータス出版済み - 12月 2004
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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