Analog Schwarzschild black hole from a nonisentropic fluid

Bilić, Nevenko; Nikolić, Hrvoje (2021) Analog Schwarzschild black hole from a nonisentropic fluid. Universe, 7 (11). ISSN 2218-1997

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Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	analog gravity ; Schwarzschild metric ; nonisentropic fluid
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Theoretical Physics Division
Depositing User:	Nevenko Bilić
Date Deposited:	15 Nov 2021 10:34
URI:	http://fulir.irb.hr/id/eprint/6709
DOI:	10.3390/universe7110413

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