Spatiotemporal detection of Kelvin waves in quantum turbulence simulations

We present evidence of Kelvin excitations in space-time resolved spectra of numerical simulations of quantum turbulence. Kelvin waves are transverse and circularly polarized waves that propagate along quantized vortices, for which the restitutive force is the tension of the vortex line, and which pl...

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Autores principales: Clark Di Leoni, P., Mininni, P.D., Brachet, M.E.
Formato: JOUR
Materias:
Bose-Einstein condensation
Energy transfer
Gravity waves
Kinetic energy
Kinetics
Quantum theory
Turbulence
Circularly polarized waves
Gross-Pitaevskii equation
Kinetic energy spectra
Quantized vortex
Quantum turbulence
Quantum turbulence simulations
Spatial and temporal resolutions
Superfluid turbulence
Vortex flow
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_24699926_v92_n6_p_ClarkDiLeoni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_24699926_v92_n6_p_ClarkDiLeoni
record_format dspace
spelling todo:paper_24699926_v92_n6_p_ClarkDiLeoni2023-10-03T16:41:28Z Spatiotemporal detection of Kelvin waves in quantum turbulence simulations Clark Di Leoni, P. Mininni, P.D. Brachet, M.E. Bose-Einstein condensation Energy transfer Gravity waves Kinetic energy Kinetics Quantum theory Turbulence Circularly polarized waves Gross-Pitaevskii equation Kinetic energy spectra Quantized vortex Quantum turbulence Quantum turbulence simulations Spatial and temporal resolutions Superfluid turbulence Vortex flow We present evidence of Kelvin excitations in space-time resolved spectra of numerical simulations of quantum turbulence. Kelvin waves are transverse and circularly polarized waves that propagate along quantized vortices, for which the restitutive force is the tension of the vortex line, and which play an important role in theories of superfluid turbulence. We use the Gross-Pitaevskii equation to model quantum flows, letting an initial array of well-organized vortices develop into a turbulent bundle of intertwined vortex filaments. By achieving high spatial and temporal resolution we are able to calculate space-time resolved mass density and kinetic energy spectra. Evidence of Kelvin and sound waves is clear in both spectra. Identification of the waves allows us to extract the spatial spectrum of Kelvin waves, clarifying their role in the transfer of energy. © 2015 American Physical Society. Fil:Mininni, P.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_24699926_v92_n6_p_ClarkDiLeoni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bose-Einstein condensation
Energy transfer
Gravity waves
Kinetic energy
Kinetics
Quantum theory
Turbulence
Circularly polarized waves
Gross-Pitaevskii equation
Kinetic energy spectra
Quantized vortex
Quantum turbulence
Quantum turbulence simulations
Spatial and temporal resolutions
Superfluid turbulence
Vortex flow
spellingShingle Bose-Einstein condensation
Energy transfer
Gravity waves
Kinetic energy
Kinetics
Quantum theory
Turbulence
Circularly polarized waves
Gross-Pitaevskii equation
Kinetic energy spectra
Quantized vortex
Quantum turbulence
Quantum turbulence simulations
Spatial and temporal resolutions
Superfluid turbulence
Vortex flow
Clark Di Leoni, P.
Mininni, P.D.
Brachet, M.E.
Spatiotemporal detection of Kelvin waves in quantum turbulence simulations
topic_facet Bose-Einstein condensation
Energy transfer
Gravity waves
Kinetic energy
Kinetics
Quantum theory
Turbulence
Circularly polarized waves
Gross-Pitaevskii equation
Kinetic energy spectra
Quantized vortex
Quantum turbulence
Quantum turbulence simulations
Spatial and temporal resolutions
Superfluid turbulence
Vortex flow
description We present evidence of Kelvin excitations in space-time resolved spectra of numerical simulations of quantum turbulence. Kelvin waves are transverse and circularly polarized waves that propagate along quantized vortices, for which the restitutive force is the tension of the vortex line, and which play an important role in theories of superfluid turbulence. We use the Gross-Pitaevskii equation to model quantum flows, letting an initial array of well-organized vortices develop into a turbulent bundle of intertwined vortex filaments. By achieving high spatial and temporal resolution we are able to calculate space-time resolved mass density and kinetic energy spectra. Evidence of Kelvin and sound waves is clear in both spectra. Identification of the waves allows us to extract the spatial spectrum of Kelvin waves, clarifying their role in the transfer of energy. © 2015 American Physical Society.
format JOUR
author Clark Di Leoni, P.
Mininni, P.D.
Brachet, M.E.
author_facet Clark Di Leoni, P.
Mininni, P.D.
Brachet, M.E.
author_sort Clark Di Leoni, P.
title Spatiotemporal detection of Kelvin waves in quantum turbulence simulations
title_short Spatiotemporal detection of Kelvin waves in quantum turbulence simulations
title_full Spatiotemporal detection of Kelvin waves in quantum turbulence simulations
title_fullStr Spatiotemporal detection of Kelvin waves in quantum turbulence simulations
title_full_unstemmed Spatiotemporal detection of Kelvin waves in quantum turbulence simulations
title_sort spatiotemporal detection of kelvin waves in quantum turbulence simulations
url http://hdl.handle.net/20.500.12110/paper_24699926_v92_n6_p_ClarkDiLeoni
work_keys_str_mv AT clarkdileonip spatiotemporaldetectionofkelvinwavesinquantumturbulencesimulations
AT mininnipd spatiotemporaldetectionofkelvinwavesinquantumturbulencesimulations
AT brachetme spatiotemporaldetectionofkelvinwavesinquantumturbulencesimulations
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