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arXiv 0704.2702cond-mat.mes-hallnlin.CD
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自旋轨道相互作用下混沌腔弹道输运的半经典理论

Semiclassical theory of ballistic transport through chaotic cavities with spin-orbit interaction

Jens Bolte, Daniel Waltner

摘要:

利用半经典方法研究了自旋轨道相互作用对混沌腔中弹道输运的影响。我们的方法是基于Landauer形式主义和Fisher-Lee关系,适当地推广到自旋轨道相互作用,和半经典表示的格林函数。我们计算电导系数,利用遍历性和适当结合的经典自旋轨道动力学的混合,并利用Sieber-Richter方法及其最近的扩展。这样,我们得到弱反本地化,并确认以前的结果中得到的随机矩阵理论的辛系综。

英文摘要:

We investigate the influence of spin-orbit interaction on ballistic transport through chaotic cavities by using semiclassical methods. Our approach is based on the Landauer formalism and the Fisher-Lee relations, appropriately generalized to spin-orbit interaction, and a semiclassical representation of Green functions. We calculate conductance coefficients by exploiting ergodicity and mixing of suitably combined classical spin-orbit dynamics, and making use of the Sieber-Richter method and its most recent extensions. That way we obtain weak anti-localization and confirm previous results obtained in the symplectic ensemble of Random Matrix Theory.

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