标题： 两个相互作用电子的介观模型 显示英文标题

标题： Two mesoscopic models of two interacting electrons

摘要： 我们研究了两个简单的介观相互作用双电子模型；第一个模型由两个具有长程库仑相互作用的量子相干平行导体组成，在某些局域区域，另一个模型是由一个与非相互作用量子线侧耦合的相互作用量子点（QD）组成。 我们评估了精确的双粒子散射矩阵以及在这些模型中的双粒子散射实验中相关的双粒子电流。 最后我们表明，在量子点中的位点排斥相互作用能够从侧耦合量子点模型中的混合双电子输入态中过滤出自旋单态双电子态。 显示英文摘要

摘要： We study two simple mesoscopic models of interacting two electrons; first one consists of two quantum coherent parallel conductors with long-range Coulomb interaction in some localized region and the other is of an interacting quantum dot (QD) side-coupled to a noninteracting quantum wire. We evaluate exact two-particle scattering matrix as well as two-particle current which are relevant in a two-particle scattering experiment in these models. Finally we show that the on-site repulsive interaction in the QD filters out the spin-singlet two-electron state from the mixed two-electron input states in the side-coupled QD model.