论文标题
量子点中电子旋转的光学测量:量子zeno效应
Optical measurement of electron spins in quantum dots: Quantum Zeno effects
论文作者
论文摘要
我们描述了在量子点中电子旋转连续光学测量下量子反向作用的影响。我们考虑通过接近TRION共振的椭圆极化的光激发系统激发,这允许同时进行旋转方向和测量。我们从显微镜上证明,由于量子Zeno和抗Zeno效应,可以通过连续的自旋测量来抑制核诱导的自旋松弛。我们的理论预测可以直接与未来的实验结果进行比较,并直接概括为泵探针实验。
We describe the effects of the quantum back action under continuous optical measurement of electron spins in quantum dots. We consider the system excitation by elliptically polarized light close to the trion resonance, which allows for the simultaneous spin orientation and measurement. We microscopically demonstrate that the nuclei-induced spin relaxation can be both suppressed and accelerated by the continuous spin measurement due to the quantum Zeno and anti-Zeno effects, respectively. Our theoretical predictions can be directly compared with the future experimental results and straightforwardly generalized for the pump-probe experiments.