双阱和三阱中玻色-爱因斯坦凝聚体的绝热输运
Adiabatic Transport of Bose-Einstein Condensate in Double- and Triple-Well Traps
摘要:
利用多光子和隧穿布居转移方案之间的相似性,我们提出了双阱和三阱中玻色-爱因斯坦凝聚体(BEC)输运的绝热方法。平均场近似(Gross-Pitaevskii方程)的计算表明,即使在BEC原子间相互作用引起的非线性效应存在下,也会发生不可逆的完全输运。的转移是由绝热的时间依赖性监测的障碍和井的深度。所提出的方法具有通用性,可以应用于各种系统和场景。
英文摘要:
By using a close similarity between multi-photon and tunneling population transfer schemes, we propose robust adiabatic methods for the transport of Bose-Einstein condensate (BEC) in double- and triple-well traps. The calculations within the mean-field approximation (Gross-Pitaevskii equation) show that irreversible and complete transport takes place even in the presence of the non-linear effects caused by interaction between BEC atoms. The transfer is driven by adiabatic time-dependent monitoring the barriers and well depths. The proposed methods are universal and can be applied to a variety of systems and scenarios.
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