arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1810.06166cond-mat.dis-nn
收藏

一维无序线的S矩阵极点分布

Distribution of S-matrix poles for one-dimensional disordered wires

I. F. Herrera-González, J. A. Méndez-Bermúdez, F. M. Izrailev

摘要:

利用有效的非厄米哈密顿散射方法,研究了具有不同类型对角无序的一维模型中散射矩阵(S矩阵)极点的分布。我们考虑的情况下,1D紧束缚电线,现场不相关和相关的障碍,耦合到连续通过导线连接到电线边缘。特别是,我们专注于作为耦合强度和无序强度的函数的S-矩阵极点在复平面中的位置。特别感兴趣的是支付超辐射过渡出现在导线和引线之间的完美耦合。我们还研究了有意施加到线无序的相关性的影响。

英文摘要:

By the use of the effective non-Hermitian Hamiltonian approach to scattering we study the distribution of the scattering matrix (S-matrix) poles in one-dimensional (1D) models with various types of diagonal disorder. We consider the case of 1D tight-binding wires, with both on-site uncorrelated and correlated disorder, coupled to the continuum through leads attached to the wire edges. In particular, we focus on the location of the S-matrix poles in the complex plane as a function of the coupling strength and the disorder strength. Specific interest is paid to the super-radiance transition emerging at the perfect coupling between wire and leads. We also study the effects of correlations intentionally imposed to the wire disorder.

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。

↑