Acceleration-induced transport of quantum vortices in joined atomtronic circuits
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911043433791488 |
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| author | Chaika, A. Oliinyk, A. O. Yatsuta, I. V. Proukakis, N. P. Edwards, M. Yakimenko, A. I. Bland, T. |
| author_facet | Chaika, A. Oliinyk, A. O. Yatsuta, I. V. Proukakis, N. P. Edwards, M. Yakimenko, A. I. Bland, T. |
| contents | Persistent currents--inviscid quantized flow around an atomic circuit--are a crucial building block of atomtronic devices. We investigate how acceleration influences the transfer of persistent currents between two density-connected, ring-shaped atomic Bose-Einstein condensates, joined by a tunable weak link that controls system topology. We find that the acceleration of this system modifies both the density and phase dynamics between the rings, leading to a bias in the periodic vortex oscillations studied in T. Bland et al., Phys. Rev. Research 4, 043171 (2022). Accounting for dissipation suppressing such vortex oscillations, the acceleration facilitates a unilateral vortex transfer to the leading ring. We analyze how this transfer depends on the weak-link amplitude, the initial persistent current configuration, and the acceleration strength and direction. Characterization of the sensitivity to these parameters paves the way for a new platform for acceleration measurements, for which we outline a proof-of-concept ultracold double-ring accelerometer. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_23818 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Acceleration-induced transport of quantum vortices in joined atomtronic circuits Chaika, A. Oliinyk, A. O. Yatsuta, I. V. Proukakis, N. P. Edwards, M. Yakimenko, A. I. Bland, T. Quantum Gases Quantum Physics Persistent currents--inviscid quantized flow around an atomic circuit--are a crucial building block of atomtronic devices. We investigate how acceleration influences the transfer of persistent currents between two density-connected, ring-shaped atomic Bose-Einstein condensates, joined by a tunable weak link that controls system topology. We find that the acceleration of this system modifies both the density and phase dynamics between the rings, leading to a bias in the periodic vortex oscillations studied in T. Bland et al., Phys. Rev. Research 4, 043171 (2022). Accounting for dissipation suppressing such vortex oscillations, the acceleration facilitates a unilateral vortex transfer to the leading ring. We analyze how this transfer depends on the weak-link amplitude, the initial persistent current configuration, and the acceleration strength and direction. Characterization of the sensitivity to these parameters paves the way for a new platform for acceleration measurements, for which we outline a proof-of-concept ultracold double-ring accelerometer. |
| title | Acceleration-induced transport of quantum vortices in joined atomtronic circuits |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2410.23818 |