A concentrated array of copper porphyrin candidate qubits†,Chemical Science

当前位置： X-MOL 学术 › Chem. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A concentrated array of copper porphyrin candidate qubits†
Chemical Science ( IF 7.6 ) Pub Date : 2018-11-21 00:00:00 , DOI: 10.1039/c8sc04435j
Chung-Jui Yu ₁ , Matthew D Krzyaniak _{1,

2} , Majed S Fataftah ₁ , Michael R Wasielewski _{1,

2} , Danna E Freedman ₁

Affiliation

Synthetic chemistry offers a pathway to realize atomically precise arrays of qubits, the smallest unit of a quantum information science system. We harnessed framework chemistry to create an array of qubit candidates, featuring one qubit every 13.6 Å, by synthesizing the new copper(II) variant of the porphyrinic metal–organic framework PCN-224. We subjected the framework to pulse-electron paramagnetic resonance (EPR) measurements, establishing spin coherence at temperatures up to 80 K within a fully spin concentrated framework. Observation of Rabi oscillations further support the viability of the qubits within these arrays. To interrogate the spin dynamics of qubit arrays, we investigated spin–lattice relaxation, T₁, through a combination of pulse-EPR and alternating current (ac) magnetic susceptibility measurements. These data revealed distinct vibrational environments within the frameworks that contribute to spin dynamics. The aggregate results establish a pathway for a synthetic approach to create spatially precise networks of qubits.

中文翻译：

铜卟啉候选量子位的集中阵列†

合成化学提供了实现原子级精确的量子位阵列（量子信息科学系统的最小单位）的途径。我们利用框架化学，通过合成卟啉金属有机框架 PCN-224 的新铜 ( II )变体，创建了一系列量子位候选者，每 13.6 Å 一个量子位。我们对该框架进行了脉冲电子顺磁共振 (EPR) 测量，在完全自旋集中的框架内建立了高达 80 K 温度下的自旋相干性。对拉比振荡的观察进一步支持了这些阵列中量子位的可行性。为了探究量子位阵列的自旋动力学，我们通过结合脉冲 EPR 和交流 (ac) 磁化率测量来研究自旋晶格弛豫T _{1 。}这些数据揭示了有助于自旋动力学的框架内的独特振动环境。汇总结果为创建空间精确的量子位网络的合成方法建立了一条途径。

更新日期：2018-11-21

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11