Floating Orbits, Superradiant Scattering and the Black-hole Bomb
Floating Orbits, Superradiant Scattering and the Black-hole Bomb
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DOI：
10.1038/238211a0
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发表时间：
1972
期刊：
影响因子：
64.8
通讯作者：
W. Press;S. Teukolsky
中科院分区：
文献类型：
--
作者：
W. Press;S. Teukolsky
彭罗斯 1 和克里斯托杜卢 2 已经展示了原则上如何通过绕轨道运行和裂变的粒子从黑洞中提取旋转能量。最近，Misner3 指出波还可以提取旋转能量（“超辐射散射”，其中撞击波在从旋转孔散射时被放大）。作为超辐射散射的一种应用，米斯纳提出了“浮动轨道”的可能存在，即粒子以与向无穷远辐射能量相同的速率从孔中辐射提取能量的轨道；因此它经历零净辐射反应。
Penrose1and Christodoulou2have shown how, in principle, rotational energy can be extracted from a black hole by orbiting and fissioning particles. Recently, Misner3has pointed out that waves can also extract rotational energy (“superradiant scattering” in which an impinging wave is amplified as it scatters off a rotating hole). As one application of super-radiant scattering, Misner has suggested the possible existence of “floating orbits”, that is, orbits in which a particle radiatively extracts energy from the hole at the same rate as it radiates energy to infinity; thereby it experiences zero net radiation reaction.