Gradient-Based Inverse Optimization of Atom-Chip Wire Currents for BEC Transport
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866913993648504832 |
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| author | Shibuya, Naoki |
| author_facet | Shibuya, Naoki |
| contents | Modulating wire currents to shift a magnetic trap along an atom chip enables smooth contact-free delivery of Bose-Einstein condensates but can deform the confinement profile causing parametric heating and atom loss. We introduce a fast simulation framework based on inverse optimization that, given an initial trap and a predefined trajectory over time, computes a wire current schedule that transports the atoms and restores the trap geometry upon arrival. We assess trap's minimum energy, lateral displacement, confinement profile and an adiabaticity parameter over a 2.4 mm trajectory for various transport durations between 2s and 5s, demonstrating the trade-off between speed and adiabaticity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_11712 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Gradient-Based Inverse Optimization of Atom-Chip Wire Currents for BEC Transport Shibuya, Naoki Quantum Physics Modulating wire currents to shift a magnetic trap along an atom chip enables smooth contact-free delivery of Bose-Einstein condensates but can deform the confinement profile causing parametric heating and atom loss. We introduce a fast simulation framework based on inverse optimization that, given an initial trap and a predefined trajectory over time, computes a wire current schedule that transports the atoms and restores the trap geometry upon arrival. We assess trap's minimum energy, lateral displacement, confinement profile and an adiabaticity parameter over a 2.4 mm trajectory for various transport durations between 2s and 5s, demonstrating the trade-off between speed and adiabaticity. |
| title | Gradient-Based Inverse Optimization of Atom-Chip Wire Currents for BEC Transport |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2508.11712 |