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arXiv 2109.02880gr-qc
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用非等熵流体模拟Schwarzschild黑洞

Analog Schwarzschild black hole from a nonisentropic fluid

Neven Bilić, Hrvoje Nikolić

摘要:

我们研究的条件下,一个相对论性流体在平坦的时空模拟声学几何可以采取相同的形式作为史瓦西黑洞几何。我们发现声速必然等于光速。由于流体的速度不能超过光速,这意味着模拟史瓦西几何在视界后面必然会破裂。

英文摘要:

We study the conditions under which an analog acoustic geometry of a relativistic fluid in flat spacetime can take the same form as the Schwarzschild black hole geometry. We find that the speed of sound must necessarily be equal to the speed of light. Since the speed of the fluid cannot exceed the speed of light, this implies that analog Schwarzschild geometry necessarily breaks down behind the horizon.

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