标题： 非平衡状态下振动量子点上的局域态密度 显示英文标题

标题： Local density of states on a vibrational quantum dot out of equilibrium

摘要： 我们使用数值精确的图示蒙特卡罗方法，在T=0时计算耦合到两个电极的振动量子点上的非平衡局域态密度。 我们的重点是电子-声子相互作用强度与偏压电压之间的相互作用。 我们发现，如果电压窗口包含一个或多个声子侧带，则谱密度表现出显著的电压依赖性。 与已建立的近似方法进行比较表明，这种效应可能归因于声子的非平衡分布。 此外，我们讨论了由电子-声子耦合引起的长期瞬态动力学。 显示英文摘要

摘要： We calculate the nonequilibrium local density of states on a vibrational quantum dot coupled to two electrodes at T=0 using a numerically exact diagrammatic Monte Carlo method. Our focus is on the interplay between the electron-phonon interaction strength and the bias voltage. We find that the spectral density exhibits a significant voltage dependence if the voltage window includes one or more phonon sidebands. A comparison with well-established approximate approaches indicates that this effect could be attributed to the nonequilibrium distribution of the phonons. Moreover, we discuss the long transient dynamics caused by the electron-phonon coupling.