标题： 存在束缚态时的量子输运 — 噪声功率 显示英文标题

标题： Quantum Transport in Presence of Bound States -- Noise Power

摘要： 在非平衡量子输运的Landauer-Buttiker散射方法中，束缚态的影响被研究。 我们表明，在频率$\nu$处的噪声功率对所有能量为$\omega_b$且满足$|\omega_b| < \nu$的束缚态敏感。 我们推导了束缚态贡献的精确表达式，并将其与仅由散射态产生的结果进行比较。 结果表明，束缚态导致总噪声功率的空间和频率依赖性的特定修改。 讨论了这一结果的理论和实验意义。 显示英文摘要

摘要： The impact of bound states in Landauer-Buttiker scattering approach to non-equilibrium quantum transport is investigated. We show that the noise power at frequency $\nu$ is sensitive to all bound states with energies $\omega_b$ satisfying $|\omega_b| < \nu$. We derive the exact expression of the bound state contribution and compare it to the one produced by the scattering states alone. It turns out that the bound states lead to specific modifications of both space and frequency dependence of the total noise power. The theoretical and experimental consequences of this result are discussed.