Quantum Turbulence

Wave Turbulence Cascades in Bose Einstein Condensates made the Cover of PRL
We use the theory of wave turbulence to predict the cascades of Bose-Einstein condensate and we corroborate our results performing numerical simulations.
Apr 9, 2023 2 min read
Project
Wave Turbulence Cascades in Bose Einstein Condensates made the Cover of PRL
Direct and Inverse Cascades in Turbulent Bose-Einstein Condensates
When a Bose-Einstein condensate (BEC) is driven out of equilibrium, density waves interact non-linearly and trigger the emergence of …
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Direct and Inverse Cascades in Turbulent Bose-Einstein Condensates
Velocity Circulation Intermittency in Finite-Temperature Turbulent Superfluid Helium
We study intermittency of circulation moments in turbulent superfluid helium by using experimental grid turbulence and numerical …
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Velocity Circulation Intermittency in Finite-Temperature Turbulent Superfluid Helium
Testing Wave Turbulence Theory for the 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 the Gross-Pitaevskii System
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
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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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
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
Counterflow-Induced Inverse Energy Cascade in Three-Dimensional Superfluid Turbulence
Finite-temperature quantum turbulence is often described in terms of two immiscible fluids that can flow with a nonzero-mean relative …
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Counterflow-Induced Inverse Energy Cascade in Three-Dimensional Superfluid Turbulence
Kolmogorov and Kelvin Wave Cascades in a Generalized Model for Quantum Turbulence
The three-dimensional visualisation above shows a close up of the initial condition used in this work. The red low-density isosurface correspond to quantum vortex lines whereas the greenish rendering are density fluctuations about the bulk value.
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Kolmogorov and Kelvin Wave Cascades in a Generalized Model for Quantum Turbulence