From Wikipedia, the free encyclopedia
Analog models of gravity are attempts to
model various phenomena of
general relativity (e.g.,
black holes or
cosmological geometries) using other
physical systems such as
acoustics in a moving
fluid ,
superfluid
helium , or
Bose–Einstein condensate ;
gravity waves in water; and propagation of
electromagnetic waves in a
dielectric medium.
[1] These analogs (or analogies) serve to provide new ways of looking at problems, permit ideas from other realms of science to be applied, and may create opportunities for practical experiments within the analog that can be applied back to the source phenomena.
Analog models of gravity have been used in hundreds of published articles in the last decade.
[2] The use of these analogs can be traced back to the very start of scientific theories for gravity, with
Newton and
Einstein .[
citation needed ]
Bose-Einstein condensates
It has been shown that Bose-Einstein condensates (BEC) are a good platform to study analog gravity.
[3] Kerr (rotating) black holes have been implemented in a BEC of
exciton-polaritons (a quantum fluid of light).
[4]
^ Barceló, Carlos; Liberati, Stefano; Visser, Matt (2011).
"Analogue Gravity" .
Living Reviews in Relativity . 14 (3): 3.
arXiv :
gr-qc/0505065 .
Bibcode :
2011LRR....14....3B .
doi :
10.12942/lrr-2011-3 .
PMC
5255896 .
PMID
28179830 .
^ Visser, Matt; Barceló, Carlos; Liberati, Stefano (2002).
"Analogue models of and for gravity" (PDF) .
General Relativity and Gravitation . 34 (10): 1719–1734.
arXiv :
gr-qc/0111111 .
Bibcode :
2001gr.qc....11111V .
doi :
10.1023/A:1020180409214 .
S2CID
14342213 .
^ Barceló, Carlos; Liberati, S; Visser, Matt (2001-03-14).
"Analogue gravity from Bose-Einstein condensates" . Classical and Quantum Gravity . 18 (6): 1137–1156.
arXiv :
gr-qc/0011026 .
Bibcode :
2001CQGra..18.1137B .
doi :
10.1088/0264-9381/18/6/312 .
ISSN
0264-9381 .
^ Solnyshkov, D. D.; Leblanc, C.; Koniakhin, S. V.; Bleu, O.; Malpuech, G. (2019-06-24).
"Quantum analogue of a Kerr black hole and the Penrose effect in a Bose-Einstein condensate" . Physical Review B . 99 (21): 214511.
arXiv :
1809.05386 .
Bibcode :
2019PhRvB..99u4511S .
doi :
10.1103/PhysRevB.99.214511 .
ISSN
2469-9950 .
S2CID
119077097 .