A Nonequilibrium Equation of State for a Turbulent 2D Bose Gas
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866912882551160832 |
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| author | Jiang, Yi Maslov, Nikolai Karailiev, Andrey Eigen, Christoph Gazo, Martin Hadzibabic, Zoran |
| author_facet | Jiang, Yi Maslov, Nikolai Karailiev, Andrey Eigen, Christoph Gazo, Martin Hadzibabic, Zoran |
| contents | Nonequilibrium equations of state can provide an effective thermodynamic-like description of far-from-equilibrium systems. We experimentally construct such an equation for a direct energy cascade in a turbulent two-dimensional Bose gas. Our homogeneous gas is continuously driven on a large length scale and, with matching dissipation on a small length scale, exhibits a nonthermal but stationary power-law momentum distribution. Our equation of state links the cascade amplitude with the underlying scale-invariant energy flux, and can, for different drive strengths, gas densities, and interaction strengths, be recast into a universal power-law form using scalings consistent with the Gross-Pitaevskii model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_06131 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A Nonequilibrium Equation of State for a Turbulent 2D Bose Gas Jiang, Yi Maslov, Nikolai Karailiev, Andrey Eigen, Christoph Gazo, Martin Hadzibabic, Zoran Quantum Gases Statistical Mechanics Atomic Physics Quantum Physics Nonequilibrium equations of state can provide an effective thermodynamic-like description of far-from-equilibrium systems. We experimentally construct such an equation for a direct energy cascade in a turbulent two-dimensional Bose gas. Our homogeneous gas is continuously driven on a large length scale and, with matching dissipation on a small length scale, exhibits a nonthermal but stationary power-law momentum distribution. Our equation of state links the cascade amplitude with the underlying scale-invariant energy flux, and can, for different drive strengths, gas densities, and interaction strengths, be recast into a universal power-law form using scalings consistent with the Gross-Pitaevskii model. |
| title | A Nonequilibrium Equation of State for a Turbulent 2D Bose Gas |
| topic | Quantum Gases Statistical Mechanics Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2602.06131 |