ADIABATICITY OF THE DARK STATE IN A NONLINEAR ATOM-TRIMER CONVERSION SYSTEM

作者：Meng Shao Ying^*; Fu Li Bin; Liu Jie

来源：International Journal of Modern Physics C, 2009, 20(7): 1011-1022.

DOI：10.1142/S0129183109014151

• Atom-trimer conversion system
• stimulated Raman adiabatic passage
• dark state
• adiabaticity

We investigate the adiabaticity of the dark state in a nonlinear atom-trimer conversion system in a stimulated Raman adiabatic passage (STIRAP). We find that, in the absence of the nonlinear collisions, the adiabatic condition for this nonlinear system only depends on the Rabi-frequency of the dimer-trimer coupling optical field, which is different from traditional STIRAP processes. In the presence of the nonlinear collisions, the adiabatic condition also relies on the atom-dimer coupling Rabi frequency. However, its influence is really small. Moreover, we propose a more feasible two-photon STIRAP scheme that has better adiabaticity and hence could yield higher atom-trimer conversion efficiency.

• 出版日期2009-7
• 单位北京应用物理与计算数学研究所