Scattering of Co-Current Surface Waves on an Analogue Black Hole
| Autor: | Alessandro Fabbri, Germain Rousseaux, Scott Robertson, Léo-Paul Euvé, Nicolas James |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Generalitat Valenciana, Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Mathématiques et Applications (LMA-Poitiers), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11) |
| Rok vydání: | 2020 |
| Předmět: |
surface: deformation
General Physics and Astronomy FOS: Physical sciences Context (language use) General Relativity and Quantum Cosmology (gr-qc) black hole: horizon Gravitation and Astrophysics 01 natural sciences 7. Clean energy General Relativity and Quantum Cosmology 0103 physical sciences wave: scattering surface effect: Hawking correlation function 010306 general physics Physics Spacetime Scattering Horizon Fluid Dynamics (physics.flu-dyn) Physics - Fluid Dynamics [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] Scattering amplitude Black hole Flow (mathematics) space-time Surface wave Quantum electrodynamics [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc] |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Phys.Rev.Lett. Phys.Rev.Lett., 2020, 124 (14), pp.141101. ⟨10.1103/PhysRevLett.124.141101⟩ |
| DOI: | 10.1103/PhysRevLett.124.141101⟩ |
| Popis: | We report on what is to our knowledge the first scattering experiment of surface waves on an accelerating transcritical flow, which in the analogue gravity context is described by an effective spacetime with a black-hole horizon. This spacetime has been probed by an incident co-current wave, which partially scatters into an outgoing countercurrent wave on each side of the horizon. The measured scattering amplitudes are compatible with the predictions of the hydrodynamical theory, where the kinematical description in terms of the effective metric is exact. This work was supported by the French National Research Agency through Grant No. ANR-15-CE30-0017-04 associated with the project HARALAB, by the University of Poitiers (ACI UP on Wave-Current Interactions 2013–2014), by the Interdisciplinary Mission of CNRS which funded the linear motor of the wave maker in 2013, and by the University of Tours in a joint grant with the University of Poitiers (ARC Poitiers-Tours 2014–2015). It benefited from the support of the project OFHYS of the CNRS 80 Pprime initiative in 2019. It was partially supported by the Spanish Mineco Grants No. FIS2014-57387-C3-1-P and No. FIS2017-84440-C2-1-P, the Generalitat Valenciana Project No. SEJI/2017/042 and the Severo Ochoa Excellence Center Project No. SEV-2014-0398. |
| Databáze: | OpenAIRE |
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