Overview of quantum metrology development at home and abroad
As an advanced measurement method,quantum metrology technology can achieve the accura-cy that cannot be measured by classical metrology,and it can supplement the accuracy and stability de-fects caused by the standard quantum limit.In addition,the quantum effect and quantum phenomenon can be reproduced by the measurement unit,which can realize the quantum value transfer and traceabili-ty activities,and is obviously superior to the traditional measurement technology in terms of measurement accuracy,sensitivity and stability.However,due to the limitations of quantum technology,quantum me-trology is still in the early stage of research,and a large number of theoretical and experimental tech-niques need to be developed to solve insurmountable scientific problems in quantum metrology.This paper reviews the research progress of quantum metrology technology,gives a comprehensive review of the de-velopment trends and trends of quantum metrology technology at home and abroad in recent years,dis-cusses the challenges faced by quantum metrology technology in different application aspects and corre-sponding countermeasures around multiple parameters such as voltage,electric energy,Hall resistance,current and other relevant application examples.Finally,The future development direction of quantum metrology technology is prospected.The continuous improvement of quantum metrology technology will continue to promote the development of metrology standards.
quantum metrologyquantum voltagequantum electrical energyquantum hall resist-ancequantum current
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