Semiclassical Diffractive Scattering for Transport Through Open Rectangular Microstructure

Semiclassical Diffractive Scattering for Transport Through Open Rectangular Microstructure

Year:    2015

Author:    Guo-Peng Zhao, Xiang-Ji Cai, Yan-Hui Zhang, Xiu-Lan Xu, Song Gao

Journal of Atomic and Molecular Sciences, Vol. 6 (2015), Iss. 4 : pp. 225–233

Abstract

We study the transport through weakly open rectangular billiards by a new semiclassical approach within the framework of the Fraunhofer diffraction. Based on a Dyson equation for the semiclassical Green's function, the transmission amplitude can be expressed as the sum over all classical trajectories connecting the entrance and the exit leads. We find that the peak positions of the transmission power spectrum not only correspond to classical trajectories but associate with a lot of nonclassical trajectories and the contributions to the power spectrum of the transmission amplitude for the first mode are largely depending on the classical trajectories with small incident angles showing a good agreement with the diffracted angular distribution within the framework of the diffractive scattering effect at the lead openings.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jams.091515.102215a

Journal of Atomic and Molecular Sciences, Vol. 6 (2015), Iss. 4 : pp. 225–233

Published online:    2015-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    9

Keywords:    Semiclassical approach Fraunhofer diffraction transmission amplitude.

Author Details

Guo-Peng Zhao

Xiang-Ji Cai

Yan-Hui Zhang

Xiu-Lan Xu

Song Gao