Title A possible redefinition of candela using light shift
Authors Xue, Xiaobo
Chen, Zhongjie
Peng, Xiang
Chen, Jingbiao
Guo, Hong
Affiliation State Key Laboratory of Advanced Optical Communication System and Network, School of Electronics Engineering and Computer Science, Peking University, Beijing, China
Issue Date 2014
Citation 31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014.Beijing, China.
Abstract Candela is one of the seven base units in the SI. The units of time and length have been defined in quantum method and the others of the base units have the potential to be redefined in quantum method or on fundamental constants, except candela. With the accuracy of measurement and application increasing, the requirement of a more accurate definition of candela is becoming urgent. In this paper, we propose a quantum method to redefine the unit of luminous intensity candela. An example shows that the accuracy of candela under the new definition can reach even better than 10-6with the help of Rb atomic clock. ? 2014 IEEE.
URI http://hdl.handle.net/20.500.11897/294834
ISSN 9781467352253
DOI 10.1109/URSIGASS.2014.6929467
Indexed EI
Appears in Collections: 信息科学技术学院
区域光纤通信网与新型光通信系统国家重点实验室

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