TY - Front. Phys. A1 - Xi-Zhou Qin (秦锡洲), Jia-Hao Huang (黄嘉豪), Hong-Hua Zhong (钟宏华), Chaohong Lee (李朝红) T1 - Clock frequency estimation under spontaneous emission Y1 - 2018-02-28 JF - Frontiers of Physics JO - Front. Phys. SP - 130302 EP - VL - 13 IS - 1 UR - https://journal.hep.com.cn/fop N1 - 10.1007/s11467-017-0706-6 ER -