论文标题
相互作用诱导的不稳定性和混乱，刺激的拉曼绝热通道从原子到分子bose-Einstein冷凝物
Interaction-induced instability and chaos in the photoassociative stimulated Raman adiabatic passage from atomic to molecular Bose-Einstein condensates
论文作者
论文摘要
我们通过刺激的拉曼绝热通道研究了相互作用对原子 - 玻色子凝结物转化为分子的影响。在混乱间隔期间避免过境期间的能量不稳定和动态不稳定性限制了绝热性，并在过程效率上施加了{\ em low}扫描率边界。对于避免过境的绝热遍历，我们发现最终未转化的人口对扫描率的相互幂律依赖性。对于混乱的遍历，我们发现由动态不稳定性参数确定的锋利的低速边界。这两种机制的相互作用决定了哪种不稳定性控制了分子产生的失败。因此，恢复过程效率需要明智的扫描参数选择。
We study the effect of interactions on the conversion of atomic -to molecular Bose-Einstein condensates via stimulated Raman adiabatic passage. Both energetic instability during avoided crossings and dynamical instability during chaotic intervals limit adiabaticity and impose {\em low} sweep-rate boundaries on the efficiency of the process. For the diabatic traverse of avoided crossings, we find a reciprocal power-law dependence of the final unconverted population on sweep rate. For the traverse of chaos, we find a sharp low-rate boundary determined by the dynamical instability parameters. The interplay of these two mechanisms determines which instability controls the failure of molecular production. A judicious choice of sweep parameters is hence required to restore the process efficiency.
