Stroboscopic model of transport through a quantum dot with spin-orbit scattering

Details Stroboscopic model of transport through a quantum dot with spin-orbit scattering Stroboscopic model of transport through a quantum dot with spin-orbit scattering

2005-08-23

arxiv.org/abs/cond-mat/0508556v1

Phys. Rev. B 72, 235305 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 3 figures

Scientific paper

10.1103/PhysRevB.72.235305

We present an open version of the symplectic kicked rotator as a stroboscopic model of electrical conduction through an open ballistic quantum dot with spin-orbit scattering. We demonstrate numerically and analytically that the model reproduces the universal weak localization and weak anti-localization peak in the magnetoconductance, as predicted by random-matrix theory (RMT). We also study the transition from weak localization to weak anti-localization with increasing strength of the spin-orbit scattering, and find agreement with RMT.

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