中文

核自旋量子比特寄存器的组装与相干控制

量子物理 2022-06-15 v1 原子物理

摘要

我们介绍了一种用于组装并独立操控二维核自旋量子比特寄存器的光镊平台。每个核自旋量子比特编码于 87^{87}Sr 的基态 1S0^{1}S_{0} 流形中,并通过位点选择性寻址光束进行独立操控。我们观察到在 5 秒后自旋弛豫可忽略不计,表明 T15T_1\gg5 s。此外,利用对量子比特子集的同步操控,我们展示了整个寄存器上显著的相位相干性,估计 T2=(21±7)T_2^\star = \left(21\pm7\right) s 并测得 T2echo=(42±6)T_2^\text{echo}=\left(42\pm6\right) s。

关键词

引用

@article{arxiv.2108.04790,
  title  = {Assembly and coherent control of a register of nuclear spin qubits},
  author = {Katrina Barnes and Peter Battaglino and Benjamin J. Bloom and Kayleigh Cassella and Robin Coxe and Nicole Crisosto and Jonathan P. King and Stanimir S. Kondov and Krish Kotru and Stuart C. Larsen and Joseph Lauigan and Brian J. Lester and Mickey McDonald and Eli Megidish and Sandeep Narayanaswami and Ciro Nishiguchi and Remy Notermans and Lucas S. Peng and Albert Ryou and Tsung-Yao Wu and Michael Yarwood},
  journal= {arXiv preprint arXiv:2108.04790},
  year   = {2022}
}

备注

10 pages, 4 figures