Fingerprints of classical diffusion in open 2D mesoscopic systems in the metallic regime

Details 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

2002-08-20

arxiv.org/abs/cond-mat/0208378v2

Europhys. Lett. 62, 719 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 3 figures

Scientific paper

10.1209/epl/i2003-00432-x

We investigate the distribution of the resonance widths ${\cal P}(\Gamma)$ and Wigner delay times ${\cal P}(\tau_W)$ for scattering from two-dimensional systems in the diffusive regime. We obtain the forms of these distributions (log-normal for large $\tau_W$ and small $\Gamma$, 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.

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