论文标题
用于优化超导量子量子设计的工程框架
Engineering Framework for Optimizing Superconducting Qubit Designs
论文作者
论文摘要
超导量子技术需要量子系统，这些量子系统的属性符合几个经常相互矛盾的要求，例如长时间的连贯性时间和高的非谐度。在这里，我们提供了一个基于通用超导量子标准模型的工程框架，该模型在磁通状态下抽象了多个电路设计参数，从而支持跨多个Qubit属性的设计优化。我们通过实验研究了一个特殊的参数制度，该参数既具有高谐波性（$ \ sim \！1 $ ghz）和长量子相干时间（$ t_1 \！= \！\！\！40 \！ - \！80 \，\！80 \，\ mathrm {μs} $ and $ t_ \ t_ \ mathrm {2echo}
Superconducting quantum technologies require qubit systems whose properties meet several often conflicting requirements, such as long coherence times and high anharmonicity. Here, we provide an engineering framework based on a generalized superconducting qubit model in the flux regime, which abstracts multiple circuit design parameters and thereby supports design optimization across multiple qubit properties. We experimentally investigate a special parameter regime which has both high anharmonicity ($\sim\!1$GHz) and long quantum coherence times ($T_1\!=\!40\!-\!80\,\mathrm{μs}$ and $T_\mathrm{2Echo}\!=\!2T_1$).
