磁声黑洞和Alfve'nic黑洞在磁声子和声子视界的霍金辐射
Magnetoacoustic and Alfve'nic Black Holes with Hawking Radiation at Horizons Made of Magnephonons and Alphonons
摘要：
我们引入了基于理想磁流体力学方程的类黑洞。类似于声学BH，其捕获声子并在声速从超音速变为亚音速的声速视界处发射霍金辐射（HR），在磁声和阿尔文BH的视界中，磁声和阿尔文波将被捕获并发射由类似于声子的量子化振动组成的HR，我们称之为磁声子和阿尔文子。我们提出，磁声和Alfve'nic BH可以在实验室中使用具有可变横截面的管嵌入在均匀磁场中，和超磁声或超Alfve'nic流。我们表明，霍金温度的两个BH是一个功能的背景磁场，数密度的流体，和半径的管。对于典型的设置，温度估计为约0.0266 K。
英文摘要：
We introduce analogue black holes (BHs) based on ideal magnetohydrodynamic equations. Similar to acoustic BHs, which trap phonons and emit Hawking radiation (HR) at the sonic horizon where the flow speed changes from super- to sub-sonic, in the horizon of magnetoacoustic and Alfvénic BHs, the magnetoacoustic and Alfve'n waves will be trapped and emit HR made of quantized vibrations similar to phonons which we call magnephonons and Alphonons. We proposed that magnetoacoustic and Alfve'nic BHs may be created in the laboratory using a tube with variable cross section embedded in a uniform magnetic field, and a super-magnetoacoustic or a super-Alfve'nic flow. We show that the Hawking temperature for both BHs is a function of the background magnetic field, number density of fluid, and radius of the tube. For a typical setup, the temperature is estimated to be about 0.0266 K.
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