ANR-GIANTE

Critical Velocity for Vortex Nucleation and Roton Emission in a Generalized Model for Superfluids
We study numerically the process of vortex nucleation at the wake of a moving object in superfluids using a generalized and non-local …
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Critical Velocity for Vortex Nucleation and Roton Emission in a Generalized Model for Superfluids
Energy spectrum of two-dimensional acoustic turbulence
We report an exact unique constant-flux power-law analytical solution of the wave kinetic equation for the turbulent energy spectrum, …
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Energy spectrum of two-dimensional acoustic turbulence
Vortex clustering, polarisation and circulation intermittency in classical and quantum turbulence
The understanding of turbulent flows is one of the biggest current challenges in physics, as no first-principles theory exists to …
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Vortex clustering, polarisation and circulation intermittency in classical and quantum turbulence
Master Internships Available
The figure above shows different numerical simulations of superfluids and particles which have been performed by members of the team. Left: A particle (in green) trapped by a quantum vortex (in red) simulated by the Gross-Pitaevskii model.
Dec 6, 2021 1 min read
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Testing wave turbulence theory for Gross-Pitaevskii system
We test the predictions of the theory of weak wave turbulence by performing numerical simulations of the Gross-Pitaevskii equation …
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Testing wave turbulence theory for Gross-Pitaevskii system
On the Determination of Vortex Ring Vorticity Using Lagrangian Particles
Particles are a widespread tool for obtaining information from fluid flows. When Eulerian data are unavailable, they may be employed to …
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On the Determination of Vortex Ring Vorticity Using Lagrangian Particles
Comment on ''Theoretical analysis of quantum turbulence using the Onsager ideal turbulence theory''
In a recent paper [T. Tanogami Phys. Rev. E 103, 023106 ] proposes a scenario for quantum turbulence where the energy spectrum at …
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Friction-enhanced lifetime of bundled quantum vortices
Experiments in the early 1980s have shown that a compact bundle of quantum vortex rings in superfluid helium remains coherent and …
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Friction-enhanced lifetime of bundled quantum vortices
Intermittency of Velocity Circulation in Quantum Turbulence
The velocity circulation, a measure of the rotation of a fluid within a closed path, is a fundamental observable in classical and …
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Intermittency of Velocity Circulation in Quantum Turbulence
Stochastic Motion of Finite-Size Immiscible Impurities in a Dilute Quantum Fluid at Finite Temperature
In this work we aim at studying numerically the dynamics of an immiscible and finite-size impurity in a quantum fluid at finite …
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Stochastic Motion of Finite-Size Immiscible Impurities in a Dilute Quantum Fluid at Finite Temperature