Rahav Saar, Brouwer Piet W
Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA.
Phys Rev Lett. 2005 Jul 29;95(5):056806. doi: 10.1103/PhysRevLett.95.056806. Epub 2005 Jul 28.
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 54, 14423 (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.
半经典理论预测，如果埃伦费斯特时间超过粒子在腔内的停留时间，那么对弹道混沌腔电导的弱局域化修正就会受到抑制[I. L. 阿莱纳和A. I. 拉金，《物理评论B》54，14423 (1996)]。我们报告了开放量子受驱转子中弱局域化的数值模拟结果，证实了这一预测。我们的结果与通过弹道混沌腔的“有效随机矩阵理论”不一致。
