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arXiv 1802.01760gr-qchep-th
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粒子在黑洞上旋转直线轨道中的运动和碰撞

Motion and collision of particles in rotating linear dilaton black hole

P. A. González, Marco Olivares, Eleftherios Papantonopoulos, Yerko Vásquez

摘要:

本文研究了四维线性玻色子黑洞背景中粒子的运动。我们解析地求解测试粒子的运动方程,并描述它们的运动。通过分析视界附近两个碰撞粒子在质心(CM)坐标系中的能量,证明了强子黑洞具有粒子加速器的作用。特别是,我们发现,有一个临界值的角动量,这取决于弦耦合,并与此临界角动量的粒子可以达到内视界与任意高的CM能量。这就是所谓的巴尼亚多斯、丝绸和西方(BSW)进程。我们还表明,粒子的运动和碰撞具有类似的行为,三维BTZ黑洞。事实上,光子可以进入视界或逃逸到无限远,它们不能被偏转,而对于大质量粒子来说,没有第一类受限轨道,就像行星轨道或圆形轨道一样。

英文摘要:

We study the motion of particles in the background of a four-dimensional linear dilaton black hole. We solve analytically the equations of motion of the test particles and we describe their motion. We show that the dilaton black hole acts as a particle accelerator by analyzing the energy in the center of mass (CM) frame of two colliding particles in the vicinity of its horizon. In particular we find that there is a critical value of the angular momentum, which depends on the string coupling, and a particle with this critical angular momentum can reach the inner horizon with an arbitrarily high CM energy. This is known as the Bañados, Silk and West (BSW) process. We also show that the motion and collisions of particles have a similar behavior to the three-dimensional BTZ black hole. In fact, the photons can plunge into the horizon or escape to infinity, and they can not be deflected, while for massive particles there are no confined orbits of first kind, like planetary or circular orbits.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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