Acceleration-induced transport of quantum vortices in joined atomtronic circuits
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, for which we outline a proof-of-concept ultracold double-ring accelerometer.
Keywords
Cite
@article{arxiv.2410.23818,
title = {Acceleration-induced transport of quantum vortices in joined atomtronic circuits},
author = {A. Chaika and A. O. Oliinyk and I. V. Yatsuta and N. P. Proukakis and M. Edwards and A. I. Yakimenko and T. Bland},
journal= {arXiv preprint arXiv:2410.23818},
year = {2025}
}