Ehrenfest-time dependence of weak localization in open quantum dots

Details Ehrenfest-time dependence of weak localization in open quantum dots Ehrenfest-time dependence of weak localization in open quantum dots

2005-05-10

arxiv.org/abs/cond-mat/0505250v1

Phys. Rev. Lett., v95, 056806 (2005) .

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.95.056806

Semiclassical theory predicts that the weak localization correction to the conductance of a ballistic chaotic cavity is suppressed if the Ehrenfest time exceeds the dwell time in the cavity [I. L. Aleiner and A. I. Larkin, Phys. Rev. B {\bf 54}, 14424 (1996)]. We report numerical simulations of weak localization in the open quantum kicked rotator that confirm this prediction. Our results disagree with the `effective random matrix theory' of transport through ballistic chaotic cavities.

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