Wang Y Q, Wang Q J, Fu J S. Quantum Frequency Standard Theory[M](量子频标原理). Bei jing: Science Press, 1986,545-552.( in Chinese)？
[2]
Yang F J. Atomic Physics[M]（原子物理学）. Bei jing: Higher Education Press, 2000.172-192.（in Chinese）？
[3]
Burt E, Prestage J D, Tjoelker R L. Probing Magnetic Field Effects in 12-Pole Linear Ion Trap Frequency Standards [C]. Proc.IEEE International Frequency Control Symposium & PDA Exhibition, New Orleans:2002, 463-468.？
[4]
She L,Wang W M,Bai L,Sun H Y, Zhu X W, Li J M, Gao K L. Fluorescence Detection and Buffer Gas Cooling of Trapped Mercury Ions in Paul Trap[J] . Chin.Phys.Lett(中国物理快报). 2008, 25(5): 1653-1656. （in Chinese）？
[5]
Tjoelker R L, Prestage J D, Dick G J, Maleki L. Long Term Stability Of Hg+ Trapped Ion Frequency Standard [C]. Proc.IEEE the 47th Annual Symp. on Frequency Control , Salt Lake City: 1993,132-138.
