Analog Schwarzschild Black Hole from a Nonisentropic Fluid

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 s...

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Bibliographic Details
Main Authors: Neven Bilić, Hrvoje Nikolić
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/7/11/413