arXiv:2410.23818 · SciPost Physics

Acceleration-induced transport of quantum vortices in joined atomtronic circuits

Andrii Chaika, Artem Oliinyk, I. V. Yatsuta, Nick P. Proukakis, Mark Edwards, A. I. Yakimenko, Thomas Bland

Published Jul 2, 2025• 4 citations

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.

DOI: 10.21468/scipostphys.19.1.005

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