Generating electron spin qubit in metal-organic frameworks via spontaneous hydrolysis

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外文摘要：Qubit,as the basic unit of quantum operations,has at least two quantum states for superposition.Diamond itself has no superimposable quantum states,but after injecting N atoms,the resulted nitrogen-vacancy centers form excellent-performance qubits.For the same purpose,we can also obtain qubits by modifying the matrix without effective quantum states.HKUST-1({Cu3(BTC)2(H2O)3},BTC=1,3,5-benzene-tricarboxylate)with S=0 ground state is electron paramagnetic resonance(EPR)silent,so it is not a qubit candidate.However,the spontaneously hydrolyzed HKUST-1 produces dilute uncoupled CuⅡ ions with S=1/2.In this paper,we utilized the hydrolysis products of HKUST-1 to obtain qubits and assembled a core-shell structural HKUST-1@ZIF-8 by ZIF-8({Zn(mim)2},mim=2-methylimidazole)coated over HKUST-1 for controlling the hydrolysis.The experimental results clearly show that the qubits come from hydrolyzed CuⅡ ions.Furthermore,the dilute uncoupled CuⅡ ions in this assembly can effectively reduce the decoherence of qubits.The EPR studies show that the T2 of this compound is 1067 ns at 10 K.

外文关键词：

HydrolysisQubitDecoherent timesMetal-organic frameworkCore-shell structure

作者：

Xian-Fa Jiang、Chongyun Shao、Zhongwen Ouyang、Zhao-Bo Hu、Zhenxing Wang、You Song

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作者单位：

State Key Laboratory of Coordination Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China

Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Wuhan National High Magnetic Field Center&School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China

Chaotic Matter Science Research Center,Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China

Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China

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基金：

National Key Research and Development Program of ChinaJoint Fund for Regional Innovation and DevelopmentNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaInterdisciplinary Program of Wuhan National High Magnetic Field CenterNatural Science Foundation of Jiangxi ProvinceJiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry

项目编号：

2021YFA1600304U20A2073219730386200529722105089WHMFC20213320224BAB21400520212BCD42018

出版年：

2024

DOI：

10.1016/j.cclet.2023.109011

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(7)