双阱玻色-爱因斯坦凝聚体与原子衍射的类比
Analogy between a two-well Bose-Einstein condensate and atom diffraction
摘要：
我们比较了两个耦合势阱中的玻色-爱因斯坦凝聚体的动力学，其中原子从驻波衍射。相应的哈密顿量具有相同的外观，但具有不同的对易规则集。著名的衍射现象，作为Pendellosung振荡相反的动量之间的布拉格衍射的情况下，和绝热动量状态之间的转换被证明有类比的两个井的情况下。它们表示阱之间固定数量的原子的集体交换。
英文摘要：
We compare the dynamics of a Bose-Einstein condensate in two coupled potential wells with atoms diffracting from a standing light wave. The corresponding Hamiltonians have an identical appearance, but with a different set of commutation rules. Well-known diffraction phenomena as Pendellosung oscillations between opposite momenta in the case of Bragg diffraction, and adiabatic transitions between momentum states are shown to have analogies in the two-well case. They represent the collective exchange of a fixed number of atoms between the wells.
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