Linear instability and adiabaticity of a dark state during conversion of two species of fermionic atoms to stable molecules |
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Authors: | Meng Shao-Ying a Chen Xi-Hao a Wu Wei a and Fu Li-Bin |
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Institution: | [1]Department of Physics, Liaoning University, Shenyang 110036, China [2]Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China [3]Center for Applied Physics and Technology, Peking University, Beijing 100871, China |
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Abstract: | 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. |
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Keywords: | linear instability adiabaticity dark state atom molecule conversion |
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