Universal Turbulent States of Miscible Two-Component Bose-Einstein Condensates
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910849423114240 |
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| author | Doki, Issei Tsubota, Makoto |
| author_facet | Doki, Issei Tsubota, Makoto |
| contents | We investigate turbulence in miscible two-component Bose-Einstein condensates confined in a box potential using the coupled Gross-Pitaevskii equations. Turbulence is driven by an oscillating force, causing the components to oscillate either in-phase (co-oscillating) or out-of-phase (counter-oscillating). A parameter measuring component separation (0 for overlap, 1 for full separation) reveals two turbulent states: coupled (the parameter $\sim0$) and decoupled (the parameter $\sim0.5$). Co-oscillating flows transition between these states at a critical interaction strength, while counter-oscillating flows consistently show the decoupled state. A probabilistic model predicts the decoupled state's parameter as $\sqrt{4/π- 1} = 0.523$, consistent with simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05002 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Universal Turbulent States of Miscible Two-Component Bose-Einstein Condensates Doki, Issei Tsubota, Makoto Quantum Gases We investigate turbulence in miscible two-component Bose-Einstein condensates confined in a box potential using the coupled Gross-Pitaevskii equations. Turbulence is driven by an oscillating force, causing the components to oscillate either in-phase (co-oscillating) or out-of-phase (counter-oscillating). A parameter measuring component separation (0 for overlap, 1 for full separation) reveals two turbulent states: coupled (the parameter $\sim0$) and decoupled (the parameter $\sim0.5$). Co-oscillating flows transition between these states at a critical interaction strength, while counter-oscillating flows consistently show the decoupled state. A probabilistic model predicts the decoupled state's parameter as $\sqrt{4/π- 1} = 0.523$, consistent with simulations. |
| title | Universal Turbulent States of Miscible Two-Component Bose-Einstein Condensates |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2501.05002 |