Macroscopic superposition of ultracold atoms with orbital degrees of freedom
Macroscopic superposition of ultracold atoms with orbital degrees of freedom
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具有轨道自由度的超冷原子的宏观叠加
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
L. Carr
中科院分区：
文献类型：
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作者：
M. Garcia;D. Dounas;L. Carr
在考虑轨道角动量的情况下，我们将更高的维度引入双阱势中的玻色-爱因斯坦凝聚问题。我们通过解析型高阶微扰理论和数值精确对角化描述了该系统的特征态。在这些状态中有混合的Josephson和Fock-like行为，激发态和基态的交叉，以及宏观叠加态的阴影。
We introduce higher dimensions into the problem of Bose-Einstein condensates in a double-well potential, taking into account orbital angular momentum. We completely characterize the eigenstates of this system, delineating new regimes via both analytical high-order perturbation theory and numerical exact diagonalization. Among these regimes are mixed Josephson- and Fock-like behavior, crossings in both excited and ground states, and shadows of macroscopic superposition states.