Functional building blocks for scalable multipartite entanglement in optical lattices
Abstract
Featuring excellent coherence and operated parallelly, ultracold atoms in optical lattices form a competitive candidate for quantum computation. For this, a massive number of parallel entangled atom pairs have been realized in superlattices. However, the more formidable challenge is to scale-up and detect multipartite entanglement due to the lack of manipulations over local atomic spins in retro-reflected bichromatic superlattices. Here we developed a new architecture based on a cross-angle spin-dependent superlattice for implementing layers of quantum gates over moderately-separated atoms incorporated with a quantum gas microscope for single-atom manipulation. We created and verified functional building blocks for scalable multipartite entanglement by connecting Bell pairs to one-dimensional 10-atom chains and two-dimensional plaquettes of atoms. This offers a new platform towards scalable quantum computation and simulation.
Keywords
Cite
@article{arxiv.2210.02936,
title = {Functional building blocks for scalable multipartite entanglement in optical lattices},
author = {Wei-Yong Zhang and Ming-Gen He and Hui Sun and Yong-Guang Zheng and Ying Liu and An Luo and Han-Yi Wang and Zi-Hang Zhu and Pei-Yue Qiu and Ying-Chao Shen and Xuan-Kai Wang and Wan Lin and Song-Tao Yu and Bin-Chen Li and Bo Xiao and Meng-Da Li and Yu-Meng Yang and Xiao Jiang and Han-Ning Dai and You Zhou and Xiongfeng Ma and Zhen-Sheng Yuan and Jian-Wei Pan},
journal= {arXiv preprint arXiv:2210.02936},
year = {2023}
}