The application of high-frequency/high-field electron paramagnetic resonance in the research on spin qudits
Electron spin resonance(EPR)is a powerful technique to study the electron structure and dynamics of many materials with unpaired electrons(paramagnetic materials).Nowadays,EPR has been widely applied in chemistry,material,radiation detection,biology,and quantum information processing.Compared with the X-Band EPR,the high frequency/field EPR(HF-EPR)has the advantages of resolution,sensitivity,and initialization.This article is a concise introduction to the history,basic theory,instrumentation,and characteristics of the HF-EPR,and the emphasis on the application of HF-EPR in the research on spin qudits.The progress and future prospects of this analysis technique are also outlined.The HF-EPR could be used as a tool to implement the coherent manipulation of spin qudits,further paving the way toward quantum logic gate operation and quantum algorithm.
electric spin resonanceelectron spinquantum coherent manipulationmolecular spin qudits
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