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Continuous weak measurement and feedback control of a solid-state charge qubit:A physical unravelling of non-Lindblad master equation

机译:固态电荷量子位的连续弱测量和反馈控制:非Lindblad主方程的物理分解

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摘要

Conventional quantum trajectory theory developed in quantum optics is largely based on the physical unravelling of a Lindblad-type master equation, which constitutes the theoretical basis of continuous quantum measurement and feedback control. In this work, in the context of continuous quantum measurement and feedback control of a solid-state charge qubit, we present a physical unravelling scheme of a non-Lindblad-type master equation. Self-consistency and numerical efficiency are well demonstrated. In particular, the control effect is manifested in the detector noise spectrum, and the effect of measurement voltage is discussed.
机译:量子光学中发展起来的常规量子轨迹理论主要基于Lindblad型主方程的物理分解,这构成了连续量子测量和反馈控制的理论基础。在这项工作中,在固态电荷量子位的连续量子测量和反馈控制的背景下,我们提出了非Lindblad型主方程的物理分解方案。自洽性和数值效率得到了很好的证明。特别是,控制效果体现在检测器噪声频谱中,并讨论了测量电压的影响。

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