论文标题
量子杂质的多体波形以平衡为止。 ii。充电波动
Many-body wavefunctions for quantum impurities out of equilibrium. II. Charge fluctuations
论文作者
论文摘要
我们扩展了上一篇论文中讨论的一般形式主义[A. B. Culver和N. Andrei，物理。 Rev. B 103，195106（2021）]到两个具有电荷波动的模型：相互作用的谐振级别模型和Anderson杂质模型。在相互作用的谐振级别模型中，我们找到了确切的时间变化波函数，并将稳态杂质占用率计算为相互作用中的领先顺序。在Anderson杂质模型中，我们发现小型或大型库仑排斥$ U $的非平衡稳态，我们发现$ U $中领先订单的稳态电流与Keldysh扰动理论计算一致。
We extend the general formalism discussed in the previous paper [A. B. Culver and N. Andrei, Phys. Rev. B 103, 195106 (2021)] to two models with charge fluctuations: the interacting resonant level model and the Anderson impurity model. In the interacting resonant level model, we find the exact time-evolving wavefunction and calculate the steady state impurity occupancy to leading order in the interaction. In the Anderson impurity model, we find the nonequilibrium steady state for small or large Coulomb repulsion $U$, and we find that the steady state current to leading order in $U$ agrees with a Keldysh perturbation theory calculation.
