单原子盒子：玻色阶梯和宇称效应
The single-atom box: bosonic staircase and effects of parity
摘要：
在强相互作用的原子-原子体系中，发展了两个玻色-爱因斯坦凝聚体在双势阱中形成的约瑟夫森结的理论，其中玻色的总数为任意的$N$。结中的隧道共振被示出为周期性地由相互作用能间隔开，形成对$N$的奇偶性敏感的单原子阶梯，即使对于大的$N$。阶梯结构的表现之一是在结的晶格中干涉图案的可见性的具有偏置能量的周期性调制。
英文摘要：
We have developed a theory of a Josephson junction formed by two tunnel-coupled Bose-Einstein condensates in a double-well potential in the regime of strong atom-atom interaction for an arbitrary total number $N$ of bosons in the condensates. The tunnel resonances in the junction are shown to be periodically spaced by the interaction energy, forming a single-atom staircase sensitive to the parity of $N$ even for large $N$. One of the manifestations of the staircase structure is the periodic modulation with the bias energy of the visibility of the interference pattern in lattices of junctions.
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