论文标题
旋转声音黑洞中的模拟Penrose过程
Analogue Penrose process in rotating acoustic black Hole
论文作者
论文摘要
如今，模拟重力是研究引力现象的重要工具，考虑到我们的技术，这将是遥不可及的。我们在这里考虑了基于排水浴缸模型描述的量子流体的旋转声黑洞中的模拟Penrose过程。由于这种声学时空的旋转性质，因此是一种在量子流体上行驶的粒子，它将具有众所周知的框架拖动效应。通过定义该声学黑洞的有效Komar质量和角动量，我们发现可以从中提取能量。同时，我们证明了黑洞角动量和质量的减小，完全类似于Penrose效应。
Analogue gravity stands today as an important tool for the investigation of gravitational phenomena that would be otherwise out of reach considering our technology. We consider here the analogue Penrose process in a rotating acoustic black hole based on a quantum fluid described by the draining bathtub model. Because of the rotating nature of this acoustic spacetime, a particle, that is a phonon travelling on the quantum fluid, will experience the well known frame dragging effect. By defining the effective Komar mass and angular momentum of this acoustic black hole, we found that energy can be extracted from it. At the same time, we show that the black hole angular momentum and mass are reduced, in complete analogy with the Penrose effect.
