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arXiv · 2405.10727

Fast transport and splitting of spin-orbit-coupled spin-1 Bose-Einstein Condensates

Yaning Xu·Yuanyuan Chen·Xi Chen
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Abstract

In this study, we investigate the dynamics of tunable spin-orbit-coupled spin-1 Bose-Einstein condensates confined within a harmonic trap, focusing on rapid transport, spin manipulation, and splitting dynamics. Using shortcuts to adiabaticity, we design time-dependent trap trajectories and spin-orbit-coupling strength to facilitate fast transport with simultaneous spin flip. Additionally, we showcase the creation of spin-dependent coherent states via engineering the spin-orbit-coupling strength. To deepen our understanding, we elucidate non-adiabatic transport and associated spin dynamics, contrasting them with simple scenarios characterized by constant spin-orbit coupling and trap velocity. Furthermore, we discuss the transverse Zeeman potential and nonlinear effect induced by interatomic interactions using the Gross-Pitaevskii equation, highlighting the stability and feasibility of the proposed protocols for the state-of-the-art experiments with cold atoms.

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Yaning Xu, Yuanyuan Chen, Xi Chen. 2024-05-17. Fast transport and splitting of spin-orbit-coupled spin-1 Bose-Einstein Condensates. https://doi.org/10.1103/physreva.109.063310

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