论文标题
通过外部两级发射器监视驱动驱动的Jaynes-Cummings振荡器：级联的开放系统方法
Monitoring the resonantly driven Jaynes-Cummings oscillator by an external two-level emitter: A cascaded open-systems approach
论文作者
论文摘要
我们解决了在不同空间位置连接到同一储层的两个级联开放量子子系统的单向耦合中背部的后果。本着[H.的精神J. Carmichael，物理。莱特牧师。 70，2273（1993）]，第二个子系统是一个两级原子，而第一个子系统是从驱动的空腔到扰动的QED配置，最终转变为驱动的Jaynes-Cummings（JC）振荡器（JC）振荡器，通过不同的光耦合强度。出于我们的目的，我们首先在沿两个通道发射的辐射描述中呼吁共振荧光的性质 - 前向和侧向散射的辐射 - 包括受监视的输出。在最简单的空腔与外部原子相结合的情况下，我们为占据两个通道的田间非经典波动的分析结果取得了分析结果，将映射到JC模型的坏腔极限，以作为描述更多涉及动力学的指南。最后，我们说明了与外部监测的两级目标相连的临界JC振荡器的复合系统的条件演化，这表明目标探针的相干原子振荡是源源中二阶耗散量子相变的二阶耗散量相变的发作。
We address the consequences of backaction in the unidirectional coupling of two cascaded open quantum subsystems connected to the same reservoir at different spatial locations. In the spirit of [H. J. Carmichael, Phys. Rev. Lett. 70, 2273 (1993)], the second subsystem is a two-level atom, while the first transforms from a driven empty cavity to a perturbative QED configuration and ultimately to a driven Jaynes-Cummings (JC) oscillator through a varying light-matter coupling strength. For our purpose, we appeal at first to the properties of resonance fluorescence in the statistical description of radiation emitted along two channels -- those of forwards and sideways scattering -- comprising the monitored output. In the simplest case of an empty cavity coupled to an external atom, we derive analytical results for the nonclassical fluctuations in the fields occupying the two channels, pursuing a mapping to the bad-cavity limit of the JC model to serve as a guide for the description of the more involved dynamics. Finally, we exemplify a conditional evolution for the composite system of a critical JC oscillator on resonance coupled to an external monitored two-level target, showing that coherent atomic oscillations of the target probe the onset of a second-order dissipative quantum phase transition in the source.
