中国物理B ›› 2005, Vol. 14 ›› Issue (7): 1317-1322.doi: 10.1088/1009-1963/14/7/009
汪克林1, 秦敢1, 张正阶2
Zhang Zheng-Jie (张正阶)a, Wang Ke-Lin (汪克林)b, Qin Gan (秦敢)b
摘要: By a model of a two-level particle coupled with boson field, we made it clear that an evolution problem can be solved beyond the rotating wave approximation. We have applied the coherent approximation method, which had been proved to be effective in dealing with stationary state problems of polaron, to the evolution problem of the system mentioned above. The results obtained showed that the coherent approximation method is effective to treat the evolution problem, and, in general cases, the non-rotating wave terms in Hamiltonian should not be ignored. Our results may provide a deep physical insight for further experiments to test the effects of non-rotating wave terms.
中图分类号: (Quantum optics)