Microscopic Study on Superexchange Dynamics of Composite Spin-1 Bosons
Abstract
We report on an experimental simulation of the spin-1 Heisenberg model with composite bosons in a one-dimensional chain based on the two-component Bose-Hubbard model. Exploiting our site-and spin-resolved quantum gas microscope, we observed faster superexchange dynamics of the spin-1 system compared to its spin-1/2 counterpart, which is attributed to the enhancement effect of multi-bosons. We further probed the non-equilibrium spin dynamics driven by the superexchange and single-ion anisotropy terms, unveiling the linear expansion of the spin-spin correlations, which is limited by the Lieb-Robinson bound. Based on the superexchange process, we prepared and verified the entangled qutrits pairs with these composite spin-1 bosons, potentially being applied in qutrit-based quantum information processing.
Cite
@article{arxiv.2403.09205,
title = {Microscopic Study on Superexchange Dynamics of Composite Spin-1 Bosons},
author = {An Luo and Yong-Guang Zheng and Wei-Yong Zhang and Ming-Gen He and Ying-Chao Shen and Zi-Hang Zhu and Zhen-Sheng Yuan and Jian-Wei Pan},
journal= {arXiv preprint arXiv:2403.09205},
year = {2024}
}