摘要
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 40K and 6Li 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.
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 40K and 6Li 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.
基金
supported by the National Natural Science Foundation of China (Grants No. 11005055, 10725521, and 11075020)
the National Fundamental Research of China (Grant No. 2011CB921503)
the Ph. D. Program Foundation of the Science and Technology Bureau of Liaoning Province of China (Grant No. 20111034)
the Higher School Excellent Researcher Award Program from the the Educational Department of Liaoning Province of China (Grant No. LJQ2011005)
the Youth Fund Project of Liaoning University (Grant No. 2010LDQN17)
