Nonlinear multi-state tunneling dynamics in a spinor Bose-Einstein condensate
Abstract
We present an experimental realization of dynamic self-trapping and non-exponential tunneling in a multi-state system consisting of ultracold sodium spinor gases confined in moving optical lattices. Taking advantage of the fact that the tunneling process in the sodium spinor system is resolvable over a broader dynamic energy scale than previously observed in rubidium scalar gases, we demonstrate that the tunneling dynamics in the multi-state system strongly depends on an interaction induced nonlinearity and is influenced by the spin degree of freedom under certain conditions. We develop a rigorous multi-state tunneling model to describe the observed dynamics. Combined with our recent observation of spatially-manipulated spin dynamics, these results open up prospects for alternative multi-state ramps and state transfer protocols.
Cite
@article{arxiv.2306.05877,
title = {Nonlinear multi-state tunneling dynamics in a spinor Bose-Einstein condensate},
author = {Z. N. Hardesty-Shaw and Q. Guan and J. O. Austin-Harris and D. Blume and R. J. Lewis-Swan and Y. Liu},
journal= {arXiv preprint arXiv:2306.05877},
year = {2025}
}