Functional building blocks for scalable multipartite entanglement in optical lattices

• URL: http://arxiv.org/abs/2210.02936v1
• Date: Thu, 6 Oct 2022 14:06:46 GMT
• Title: Functional building blocks for scalable multipartite entanglement in optical lattices
• Authors: Wei-Yong Zhang, Ming-Gen He, Hui Sun, Yong-Guang Zheng, Ying Liu, An Luo, Han-Yi Wang, Zi-Hang Zhu, Pei-Yue Qiu, Ying-Chao Shen, Xuan-Kai Wang, Wan Lin, Song-Tao Yu, Bin-Chen Li, Bo Xiao, Meng-Da Li, Yu-Meng Yang, Xiao Jiang, Han-Ning Dai, You Zhou, Xiongfeng Ma, Zhen-Sheng Yuan, Jian-Wei Pan
• Abstract summary: We develop a new architecture 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 $2times4$ atoms.
• Score: 7.362583014963337
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 $2\times4$ atoms. This offers a new platform towards scalable quantum computation and simulation.

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