Coherent Addressing of Single Molecular Electron Spin Qubits  

作　　者：Xiya Du Aimei Zhou Lei Sun 

机构地区：[1]Department of Chemistry,Schoolof Science and Research Centerfor Industries of the Future,Westlake University,600 Dunyu Road,Hangzhou,Zhejiang 310030,China [2]Institute of Natural Sciences,Westlake Institute of Advanced Study,18 Shilongshan Road,Hangzhou,Zhejiang 310024,China [3]Key Laboratory for Quantum Materials of Zhejiang Province,Department of Physics,School of Science,Westlake University,600 Dunyu Road,Hangzhou,Zhejiang 310030,China

出　　处：《Chinese Journal of Chemistry》2024年第22期2895-2901,共7页中国化学（英文版）

基　　金：supports from the National Natural Science Foundation of China(No.22273078);Hangzhou Municipal Funding,Team of Innovation(No.TD2022004).

摘　　要：With rational designability,versatile tunability,and quantum coherence,molecular electron spin qubits could offer new opportunities 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 spectroscopy,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 spectroscopy 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 overcome these challenges and to improve single qubit addressing technologies,which will facilitate the advancement of molecular quantum information science.

关 键 词：Quantum information science Electron spin qubit Quantum coherence Single-molecule studies EPR spectroscopy 

分 类 号：O41[理学—理论物理]