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arXiv 1804.09545cond-mat.mes-hall
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二维里德伯激子自旋轨道耦合的能级排斥

Energy levels repulsion by spin-orbit coupling in two-dimensional Rydberg excitons

V. A. Stephanovich, E. Ya. Sherman, N. T. Zinner, O. V. Marchukov

摘要:

研究了Rashba自旋轨道耦合对二维里德堡激子系统的影响。使用分析和数值参数,我们表明,这种耦合大大修改的波函数,并导致一个水平的排斥,导致偏离泊松统计的相邻水平的距离分布。这意味着系统向不可积性的跨越,并暗示了量子混沌出现的可能性。这种行为与经典的实现方式有很大的不同,在经典的实现方式中,自旋-轨道耦合在激子中产生高度纠缠的混沌电子轨迹。我们还计算了振子强度,并表明,随机化出现在不同的总动量的状态之间的过渡。

英文摘要:

We study the effects of Rashba spin-orbit coupling on two-dimensional Rydberg exciton systems. Using analytical and numerical arguments we demonstrate that this coupling considerably modifies the wave functions and leads to a level repulsion that results in a deviation from the Poissonian statistics of the adjacent level distance distribution. This signifies the crossover to non-integrability of the system and hints on the possibility of quantum chaos emerging. Such a behavior strongly differs from the classical realization, where spin-orbit coupling produces highly entangled, chaotic electron trajectories in an exciton. We also calculate the oscillator strengths and show that randomization appears in the transitions between states with different total momenta.

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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