Current-voltage characteristics of a single-electron transistor with a vibrating quantum dot were calculated assuming vibrons to be in a coherent (non-equilibrium) state. For a large amplitude of quantum dot oscillations we predict strong suppression of conductance and the lifting of polaronic blockade by bias voltage in the form of steps in I-V curves. The height of the steps differs from the prediction of the Franck-Condon theory (valid for equilibrated vibrons) and the current saturates at lower voltages than for the case, when vibrons are in equilibrium state.

中文翻译：

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单分子晶体管中非平衡振动引起的极化效应

假设振动子处于相干（非平衡）状态，计算具有振动量子点的单电子晶体管的电流-电压特性。对于大振幅的量子点振荡，我们预测电导的强烈抑制和偏压以 IV 曲线阶梯形式解除极化子阻塞。台阶的高度不同于 Franck-Condon 理论的预测（对平衡振动器有效），并且电流在比振动器处于平衡状态时更低的电压下饱和。