Black holes as particle accelerators: a brief review
Black holes as particle accelerators: a brief review
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DOI：
10.1088/0264-9381/31/24/243001
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发表时间：
2014-09
影响因子：
3.5
通讯作者：
T. Harada;M. Kimura
中科院分区：
文献类型：
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作者：
T. Harada;M. Kimura
如果粒子的角动量被微调到某个临界值，快速旋转的克尔黑洞可以将粒子加速到任意高的能量。这种现象是鲁棒的，因为它是建立在一个近极值克尔黑洞周围的测地线轨道的基本性质。另一方面，加速度的最大能量受到几种物理效应的影响。有令人信服的证据表明，粒子加速到任意高的能量是一般近极值黑洞的普遍性质之一。我们还讨论了引力粒子加速度在更一般的情况下。本文旨在为非专业人士提供这一主题的教学介绍和简要概述。
Rapidly rotating Kerr black holes can accelerate particles to arbitrarily high energy if the angular momentum of the particle is fine-tuned to some critical value. This phenomenon is robust as it is founded on the basic properties of geodesic orbits around a near-extremal Kerr black hole. On the other hand, the maximum energy of the acceleration is subjected to several physical effects. There is convincing evidence that the particle acceleration to arbitrarily high energy is one of the universal properties of general near-extremal black holes. We also discuss gravitational particle acceleration in a more general context. This article is intended to provide a pedagogical introduction to and a brief overview of this topic for non-specialists.