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arXiv 2404.19293cond-mat.quant-gascond-mat.str-el
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谐振阱中具有自旋-轨道-角动量耦合的两个原子

Two atoms in a harmonic trap with spin-orbital-angular-momentum coupling

Xiao-Long Chen, Aixi Chen, Shi-Guo Peng

AI总结:

本文利用精确对角化方法研究了自旋-轨道-角动量耦合下谐振阱中两体原子的能谱与关联,揭示了相互作用与耦合对简并消除的影响,为少体物理及多体光谱实验探测提供见解。

摘要:

我们研究了在自旋-轨道-角动量(SOAM)耦合存在时两个谐振阱原子的两体问题。利用精确对角化方法数值计算了两体能谱。我们分析了原子间相互作用与SOAM耦合相互影响下能级简并的消除情况。精确数值结果在弱相互作用极限及无SOAM耦合情况下与微扰理论结果高度吻合。还讨论了原子间关联性质随相互作用强度的变化。本文的发现可能为受SOAM耦合影响的少体物理,以及多体系统中谱函数(如射频光谱学)的实验探测提供有价值的见解。

英文摘要:

We study the problem of two harmonically trapped atoms in the presence of spin-orbital-angular-momentum (SOAM) coupling. The two-body energy spectrum is numerically calculated by utilizing the exact diagonalization method. We analyze how the degeneracy of energy levels is lifted under the interplay between the interatomic interaction and SOAM coupling. The exact numerical results show excellent agreement with that of perturbation theory in the weak-interaction limit as well as that in the absence of SOAM coupling. The properties of correlations between the two atoms are also discussed with respect to the interaction strength. The findings in this paper may provide valuable insights into few-body physics subjected to SOAM coupling and the possible experimental detection of spectrum functions in many-body systems, such as radiofrequency spectroscopy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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