Instituto de Estructura de la Materia, CSIC, Madrid, Spain.
Phys Rev Lett. 2012 Feb 17;108(7):076803. doi: 10.1103/PhysRevLett.108.076803. Epub 2012 Feb 13.
We investigate scattering through chaotic ballistic quantum dots in the Coulomb-blockade regime. Focusing on the scattering phase, we show that large universal sequences emerge in the short wavelength limit, where phase lapses of π systematically occur between two consecutive resonances. Our results are corroborated by numerics and are in qualitative agreement with existing experiments.
我们研究了在库仑阻塞 regime 下通过混沌弹道量子点的散射。我们专注于散射相位,展示了在短波长极限下出现的大的通用序列,其中在两个连续共振之间系统地发生 π 相跃变。我们的结果得到了数值的证实,并与现有的实验定性一致。