Observation of Vinen turbulence during far-from-equilibrium Bose-Einstein condensation
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
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2026
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| _version_ | 1866910181527388160 |
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| author | Morris, Sebastian J. Gazo, Martin Fischer, Simon M. Zhang, Haoyu Ho, Christopher J. Cooper, Nigel R. Eigen, Christoph Hadzibabic, Zoran |
| author_facet | Morris, Sebastian J. Gazo, Martin Fischer, Simon M. Zhang, Haoyu Ho, Christopher J. Cooper, Nigel R. Eigen, Christoph Hadzibabic, Zoran |
| contents | Relaxation of far-from-equilibrium quantum fluids, intimately related to the emergence of long-range order, is theoretically associated with the decay of a turbulent isotropic tangle of vortex lines. We observe and study such decaying quantum turbulence in a homogeneous 3D atomic Bose gas. Using matter-wave techniques to magnify the gas density distribution, and then imaging a thin slice of the magnified cloud, we observe imprints of randomly oriented vortex lines and measure the vortex line-length density $\mathcal{L}$. The observed decay of $\mathcal{L}$ agrees with the prediction for Vinen `ultraquantum' turbulence. Although our weakly interacting gases are highly compressible, their large-scale dynamics are consistent with the behavior of an incompressible hydrodynamic fluid, with the decay of $\mathcal{L}$ not depending on the strength of the interatomic interactions and being similar to that in the strongly interacting superfluid helium. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_28191 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Observation of Vinen turbulence during far-from-equilibrium Bose-Einstein condensation Morris, Sebastian J. Gazo, Martin Fischer, Simon M. Zhang, Haoyu Ho, Christopher J. Cooper, Nigel R. Eigen, Christoph Hadzibabic, Zoran Quantum Gases Other Condensed Matter Statistical Mechanics Quantum Physics Relaxation of far-from-equilibrium quantum fluids, intimately related to the emergence of long-range order, is theoretically associated with the decay of a turbulent isotropic tangle of vortex lines. We observe and study such decaying quantum turbulence in a homogeneous 3D atomic Bose gas. Using matter-wave techniques to magnify the gas density distribution, and then imaging a thin slice of the magnified cloud, we observe imprints of randomly oriented vortex lines and measure the vortex line-length density $\mathcal{L}$. The observed decay of $\mathcal{L}$ agrees with the prediction for Vinen `ultraquantum' turbulence. Although our weakly interacting gases are highly compressible, their large-scale dynamics are consistent with the behavior of an incompressible hydrodynamic fluid, with the decay of $\mathcal{L}$ not depending on the strength of the interatomic interactions and being similar to that in the strongly interacting superfluid helium. |
| title | Observation of Vinen turbulence during far-from-equilibrium Bose-Einstein condensation |
| topic | Quantum Gases Other Condensed Matter Statistical Mechanics Quantum Physics |
| url | https://arxiv.org/abs/2604.28191 |