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| Autori principali: | , |
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| Natura: | Preprint |
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2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2410.22410 |
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| _version_ | 1866912116634550272 |
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| author | Wittmer, Paul Ewerz, Carlo |
| author_facet | Wittmer, Paul Ewerz, Carlo |
| contents | We report real-time simulations of far-from-equilibrium dynamics of a holographic superfluid in three dimensions. The holographic duality maps a strongly coupled superfluid to a weakly coupled theory with gravity in a higher-dimensional curved space which we study numerically. Starting from configurations of dense tangles of quantized vortex lines, the superfluid exhibits turbulent behavior during its evolution towards thermal equilibrium. Specifically, we observe two subsequent universal regimes of quasi-stationary scaling in the occupation number spectrum, the first of which is Kolmogorov-like. Indications for the strongly dissipative nature of vortex dynamics in the three-dimensional holographic superfluid are found in the rapid shrinking and annihilation of small vortex rings that emerge from frequent reconnections of vortex lines during the evolution. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_22410 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum Turbulence in a Three-Dimensional Holographic Superfluid Wittmer, Paul Ewerz, Carlo High Energy Physics - Theory Quantum Gases Fluid Dynamics We report real-time simulations of far-from-equilibrium dynamics of a holographic superfluid in three dimensions. The holographic duality maps a strongly coupled superfluid to a weakly coupled theory with gravity in a higher-dimensional curved space which we study numerically. Starting from configurations of dense tangles of quantized vortex lines, the superfluid exhibits turbulent behavior during its evolution towards thermal equilibrium. Specifically, we observe two subsequent universal regimes of quasi-stationary scaling in the occupation number spectrum, the first of which is Kolmogorov-like. Indications for the strongly dissipative nature of vortex dynamics in the three-dimensional holographic superfluid are found in the rapid shrinking and annihilation of small vortex rings that emerge from frequent reconnections of vortex lines during the evolution. |
| title | Quantum Turbulence in a Three-Dimensional Holographic Superfluid |
| topic | High Energy Physics - Theory Quantum Gases Fluid Dynamics |
| url | https://arxiv.org/abs/2410.22410 |