SciPost Submission Page
Acceleration-induced transport of quantum vortices in joined atomtronic circuits
by A. Chaika, A. O. Oliinyk, I. V. Yatsuta, N. P. Proukakis, M. Edwards, A. I. Yakimenko, T. Bland
Submission summary
| Authors (as registered SciPost users): | Thomas Bland · Andrii Chaika · Mark Edwards · Nick Proukakis · Alexander Yakimenko · Ihor Yatsuta |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2410.23818v1 (pdf) |
| Date submitted: | Nov. 4, 2024, 3:39 p.m. |
| Submitted by: | Bland, Thomas |
| Submitted to: | SciPost Physics |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
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.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Current status:
Reports on this Submission
Strengths
This is an excellent paper proposing a novel approach to the measurement of accelerations in an an atomtronic circuit. The acceleration is shown to affect the vortex dynamics in a double-ring circuit.
One advantage of using guided ultracold atoms for quantum sensing, as opposed to free-space interferometers, is that the setup can be made more compact and portable. This is a great advantage which makes this proposal competitive, despite its predicted sensitivity not reaching the best sensitivities of state-of-the-art accelerometers.
Weaknesses
There are no weakness, aside from the minor suggestions for improvements detailed in the "Requested changes" section.
Report
The journal's acceptance criteria are fully met.
The paper is highly original and the results are presented very clearly. I only have a few requested changes, detailed below.
Requested changes
1) The introduction is exhaustive, however I think Dowling's proposal for rotation sensing with a superposition of persistent currents should be included. See:
https://arxiv.org/abs/0907.1138
2) In Fig 1, for panels (a) and (b) at t=0, is it worth also stating explicitly that a=0?
2) In Fig 2, where persistent current oscillations are shown, is there a best time within the oscillation for V_0 to begin the ramp to 0, so that the vortex is transferred? If the ramp starts at the wrong time, will the vortex go back to the leading ring?
Recommendation
Publish (surpasses expectations and criteria for this Journal; among top 10%)