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Coherent Addressing of Single Molecular Electron Spin Qubits

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With rational designability,versatile tunability,and quantum coherence,molecular electron spin qubits could offer new opportuni-ties for quantum information science,enabling simplified implementation of quantum algorithms and chemical-specific quantum sensing.The development of these transformative technologies relies on coherent addressing of single molecular electron spin qubits with high initialization,manipulation,and readout fidelities.This is unfeasible to conventional electron spin resonance spec-troscopy,which is widely used for coherent addressing of ensemble electron spins,due to its low initialization efficiency and readout sensitivity.Taking advantage of single spin detectability of single-molecule spectroscopy,scanning tunneling microscopy,atomic force microscopy,and quantum metrology,several strategies have been developed to empower electron spin resonance spectros-copy with single qubit addressability.In this Emerging Topic,we introduce principles and technical implementation of strategies for coherent addressing of single molecular electron spin qubits,discuss their potential applicability in quantum technologies,and point out their challenges in terms of scalability,molecular design,and/or decoherence suppression.We discuss future directions to over-come these challenges and to improve single qubit addressing technologies,which will facilitate the advancement of molecular quantum information science.

Quantum information scienceElectron spin qubitQuantum coherenceSingle-molecule studiesEPR spectroscopy

Xiya Du、Aimei Zhou、Lei Sun

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Department of Chemistry,School of Science and Research Center for Industries of the Future,Westlake University,600 Dunyu Road,Hangzhou,Zhejiang 310030,China

Institute of Natural Sciences,Westlake Institute of Advanced Study,18 Shilongshan Road,Hangzhou,Zhejiang 310024,China

Key Laboratory for Quantum Materials of Zhejiang Province,Department of Physics,School of Science,Westlake University,600 Dunyu Road,Hangzhou,Zhejiang 310030,China

2024

10.1002/cjoc.202400048

中国化学(英文版)
中国化学会 上海有机化学研究所

中国化学(英文版)

CSTPCD
影响因子：0.848
ISSN：1001-604X
年,卷(期)：2024.42(22)