arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2409.06313quant-ph
收藏

锗空位多量子比特节点中长寿命核记忆自旋的相干控制

Coherent Control of a Long-Lived Nuclear Memory Spin in a Germanium-Vacancy Multi-Qubit Node

Nick Grimm, Katharina Senkalla, Philipp J. Vetter, Jurek Frey, Prithvi Gundlapalli, Tommaso Calarco, Genko Genov, Matthias M. Müller, Fedor Jelezko

AI总结:

本文展示了对金刚石中锗空位色心耦合13C核自旋的相干控制,实现超过2.5秒的相干时间,并估计记忆时间可达18.1秒,为量子中继器节点应用奠定基础。

摘要:

处理并存储周围核自旋上的信息是基于第四族色心的中继器节点的一项主要要求。我们展示了对金刚石中与带负电的锗空位中心强耦合的13C核自旋的相干控制,在毫开尔文温度下相干时间超过2.5秒,这是第四族缺陷中报道的最长纪录。通过详细分析,我们能够对该系统的动力学进行建模,提取耦合参数并表征噪声。在考虑加热限制的情况下,我们估计可实现18.1秒的记忆时间,这为其作为量子中继器节点的成功应用铺平了道路。

英文摘要:

The ability to process and store information on surrounding nuclear spins is a major requirement for group-IV color center-based repeater nodes. We demonstrate coherent control of a ${}^{13}$C nuclear spin strongly coupled to a negatively charged germanium-vacancy center in diamond with coherence times beyond 2.5s at mK temperatures, which is the longest reported for group-IV defects. Detailed analysis allows us to model the system's dynamics, extract the coupling parameters, and characterize noise. We estimate an achievable memory time of 18.1s with heating limitations considered, paving the way to successful applications as a quantum repeater node.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑