Radiation-reaction force on a particle plunging into a black hole
Radiation-reaction force on a particle plunging into a black hole
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粒子陷入黑洞时的辐射反作用力
DOI：
10.1103/physrevd.62.084040
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发表时间：
2000
影响因子：
5
通讯作者：
L. Burko
中科院分区：
文献类型：
--
作者：
L. Barack;L. Burko
本文计算了径向落入史瓦西黑洞的标量粒子的自作用力。我们把粒子的自场看作是在固定史瓦西背景下的线性扰动。通过数值求解时域中场的每个模式的适当波动方程，计算其对自作用力的贡献，并使用Ori的模式总和正则化处方对所有模式求和来计算力。力的径向分量在大距离处是吸引力，当粒子接近事件视界时，它变成排斥力。
We calculate the self-force acting on a scalar particle which is falling radially into a Schwarzschild black hole. We treat the particle’s self-field as a linear perturbation over the fixed Schwarzschild background. The force is calculated by numerically solving the appropriate wave equation for each mode of the field in the time domain, calculating its contribution to the self-force, and summing over all modes using Ori’s mode-sum regularization prescription. The radial component of the force is attractive at large distances, and becomes repulsive as the particle approaches the event horizon.