Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory
Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant. Sound waves patterns in transsonic regimes at a laboratory are employed here to provide ex...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-12-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317309012 |
| _version_ | 1818904753909792768 |
|---|---|
| author | R. da Rocha R.F. Sobreiro A.A. Tomaz |
| author_facet | R. da Rocha R.F. Sobreiro A.A. Tomaz |
| author_sort | R. da Rocha |
| collection | DOAJ |
| description | Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant. Sound waves patterns in transsonic regimes at a laboratory are employed here to provide experimental data regarding generalized theories of gravity, comprised by the exact de Sitter-like solution and a perturbative solution around the Schwarzschildâde Sitter standard solution as well. Using the classical tests of General Relativity to bound free parameters in these solutions, acoustic perturbations on fluid flows in nozzles are then regarded, to study quasinormal modes of these black holes solutions, providing deviations of the de Laval nozzle cross-sectional area, when compared to the Schwarzschild solution. The fluid sonic point in the nozzle, for sound waves in the fluid, is shown to implement the acoustic event horizon corresponding to quasinormal modes. Keywords: Black holes, Fluid branes, Fluid dynamics, Quadratic curvature gravity, de Laval nozzle |
| first_indexed | 2024-12-19T21:12:27Z |
| format | Article |
| id | doaj.art-2ee657cc345c4a39871ae1191cd49c50 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-19T21:12:27Z |
| publishDate | 2017-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-2ee657cc345c4a39871ae1191cd49c502022-12-21T20:05:28ZengElsevierPhysics Letters B0370-26932017-12-01775277282Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratoryR. da Rocha0R.F. Sobreiro1A.A. Tomaz2Centro de Matemática, Computação e Cognição, Universidade Federal do ABC â UFABC, 09210-580, Santo André, BrazilUFF â Universidade Federal Fluminense, Instituto de FÃsica, Campus da Praia Vermelha, Avenida General Milton Tavares de Souza s/n, 24210-346, Niterói, RJ, Brazil; Corresponding author.CBPF â Centro Brasileiro de Pesquisas FÃsicas, Rua Dr. Xavier Sigaud, 150, 22290-180, Rio de Janeiro, RJ, BrazilSound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant. Sound waves patterns in transsonic regimes at a laboratory are employed here to provide experimental data regarding generalized theories of gravity, comprised by the exact de Sitter-like solution and a perturbative solution around the Schwarzschildâde Sitter standard solution as well. Using the classical tests of General Relativity to bound free parameters in these solutions, acoustic perturbations on fluid flows in nozzles are then regarded, to study quasinormal modes of these black holes solutions, providing deviations of the de Laval nozzle cross-sectional area, when compared to the Schwarzschild solution. The fluid sonic point in the nozzle, for sound waves in the fluid, is shown to implement the acoustic event horizon corresponding to quasinormal modes. Keywords: Black holes, Fluid branes, Fluid dynamics, Quadratic curvature gravity, de Laval nozzlehttp://www.sciencedirect.com/science/article/pii/S0370269317309012 |
| spellingShingle | R. da Rocha R.F. Sobreiro A.A. Tomaz Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory Physics Letters B |
| title | Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory |
| title_full | Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory |
| title_fullStr | Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory |
| title_full_unstemmed | Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory |
| title_short | Quadratic curvature terms and deformed Schwarzschildâde Sitter black hole analogues in the laboratory |
| title_sort | quadratic curvature terms and deformed schwarzschildade sitter black hole analogues in the laboratory |
| url | http://www.sciencedirect.com/science/article/pii/S0370269317309012 |
| work_keys_str_mv | AT rdarocha quadraticcurvaturetermsanddeformedschwarzschildadesitterblackholeanaloguesinthelaboratory AT rfsobreiro quadraticcurvaturetermsanddeformedschwarzschildadesitterblackholeanaloguesinthelaboratory AT aatomaz quadraticcurvaturetermsanddeformedschwarzschildadesitterblackholeanaloguesinthelaboratory |