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A quantum optical transistor with a single quantum dot in a photonic crystal nanocavity

机译:在光子晶体纳米腔中具有单个量子点的量子光学晶体管

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摘要

Laser and strong coupling can coexist in a single quantum dot (QD) coupled to a photonic crystal nanocavity. This provides an important clue towards the realization of a quantum optical transistor. Using experimentally realistic parameters, in this work, theoretical analysis shows that such a quantum optical transistor can be switched on or off by turning on or off the pump laser, which corresponds to attenuation or amplification of the probe laser, respectively. Furthermore, based on this quantum optical transistor, an all-optical measurement of the vacuum Rabi splitting is also presented. The idea of associating a quantum optical transistor with this coupled QD-nanocavity system may achieve images of light controlling light in all-optical logic circuits and quantum computers.
机译:激光和强耦合可以共存于与光子晶体纳米腔耦合的单个量子点(QD)中。这为实现量子光学晶体管提供了重要线索。使用实验中现实的参数,在这项工作中,理论分析表明,可以通过打开或关闭泵浦激光器来开启或关闭这种量子光学晶体管,这分别对应于探测激光器的衰减或放大。此外,基于该量子光学晶体管,还提出了真空拉比分裂的全光学测量。将量子光学晶体管与该耦合的QD-纳米腔系统相关联的想法可以在全光学逻辑电路和量子计算机中获得光控制光的图像。

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