Linear instability and adiabaticity of a dark state during conversion of two species of fermionic atoms to stable molecules

作者：Meng Shao Ying; Chen Xi Hao; Wu Wei; Fu Li Bin^*

来源：Chinese Physics B, 2012, 21(4): 040308.

DOI：10.1088/1674-1056/21/4/040308

• linear instability
• adiabaticity
• dark state
• atom-molecule conversion

In the present paper, we investigate the linear instability and adiabaticity of a dark state during conversion of two species of fermionic atoms to stable molecules through the stimulated Raman adiabatic passage aided by Feshbach resonance. We analytically obtain the regions for the appearance of linear instability. Moreover, taking K-40 and Li-6 atom molecule conversion systems as examples, we give the unstable regions numerically. We also attempt to obtain the adiabatic criterion for this nonlinear system with classical adiabatic dynamics and study the adibaticity of the dark state with the adiabatic condition.

• 出版日期2012-4
• 单位北京应用物理与计算数学研究所; 辽宁大学; 北京大学