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 |