具有有色表面无序的粗糙量子线的电导特性
Conductance properties of rough quantum wires with colored surface disorder
摘要：
关联无序对波局域化的影响引起了人们极大的兴趣。出于粗糙纳米线中量子输运研究的重要性，在这里，我们研究如何着色表面粗糙度影响二维量子波导的电导，使用基于反应矩阵方法的直接散射计算。结合局域化长度与关联无序结构因子之间的理论关系对计算结果进行了分析。我们还研究和讨论了几种情况下，没有被理论上处理或超出了有效性制度的现有理论。结果表明，量子线的电导特性是可控的通过有色表面无序。
英文摘要：
Effects of correlated disorder on wave localization have attracted considerable interest. Motivated by the importance of studies of quantum transport in rough nanowires, here we examine how colored surface roughness impacts the conductance of two-dimensional quantum waveguides, using direct scattering calculations based on the reaction matrix approach. The computational results are analyzed in connection with a theoretical relation between the localization length and the structure factor of correlated disorder. We also examine and discuss several cases that have not been treated theoretically or are beyond the validity regime of available theories. Results indicate that conductance properties of quantum wires are controllable via colored surface disorder.
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