Nonlocal energy transfer mechanism in three-dimensional quantum turbulence
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866908907023106048 |
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| author | Bes, Elliot Balarac, Guillaume Polanco, Juan Ignacio |
| author_facet | Bes, Elliot Balarac, Guillaume Polanco, Juan Ignacio |
| contents | We investigate the kinetic energy cascade in zero-temperature quantum turbulence. Using simple theoretical arguments and unprecedented numerical simulations, we unveil an universal mechanism transferring energy directly from large to very small scales, thus bypassing the Kolmogorov-like local energy cascade and resulting in nonclassical energy spectra. This mechanism rests both on the vast separation of scales typical of superfluid helium-4 flows and on the alignment between quantum vortices and large-scale velocity gradients, in direct analogy with vortex stretching in classical flows. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_21979 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Nonlocal energy transfer mechanism in three-dimensional quantum turbulence Bes, Elliot Balarac, Guillaume Polanco, Juan Ignacio Fluid Dynamics We investigate the kinetic energy cascade in zero-temperature quantum turbulence. Using simple theoretical arguments and unprecedented numerical simulations, we unveil an universal mechanism transferring energy directly from large to very small scales, thus bypassing the Kolmogorov-like local energy cascade and resulting in nonclassical energy spectra. This mechanism rests both on the vast separation of scales typical of superfluid helium-4 flows and on the alignment between quantum vortices and large-scale velocity gradients, in direct analogy with vortex stretching in classical flows. |
| title | Nonlocal energy transfer mechanism in three-dimensional quantum turbulence |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2603.21979 |