Fingerprints of classical diffusion in open 2D mesoscopic systems in the metallic regime
Fingerprints of classical diffusion in open 2D mesoscopic systems in the metallic regime
复制标题
金属态开放二维介观系统中经典扩散的指纹
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
T. Geisel
中科院分区：
文献类型：
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作者：
A. Ossipov;T. Kottos;T. Geisel
研究了扩散区二维系统散射的共振宽度(Γ)和维格纳延迟时间(τW)的分布。对于不同的对称类，我们得到了这些分布的形式(大τW和小Γ的对数正态分布，以及相反的情况下的幂定律)，并表明它们是由潜在的扩散经典动力学决定的。我们的理论论证得到了大量的数值计算的支持。
We investigate the distribution of the resonance widths (Γ) and Wigner delay times (τW) for scattering from two-dimensional systems in the diffusive regime. We obtain the forms of these distributions (log-normal for large τW and small Γ, and power law in the opposite case) for different symmetry classes and show that they are determined by the underlying diffusive classical dynamics. Our theoretical arguments are supported by extensive numerical calculations.