低维系统中的少光子输运:相互作用-感应辐射俘获
Few-photon transport in low-dimensional systems: Interaction-induced radiation trapping
摘要:
我们提出了一个详细的分析,在波导系统中的光子输运的动力学在一个二能级系统的存在。在这些系统中,量子干涉效应在少光子水平上产生了很强的有效光学非线性。我们通过适当的量子多体方法阐明了相关的物理机制。在此基础上,我们证明了带外能量的单粒子光子-原子束缚态可以通过多粒子散射过程激发。我们进一步表明,这些陷阱效应是强大的,因此,将是有用的控制光子纠缠在基于固态的量子光学系统。
英文摘要:
We present a detailed analysis of the dynamics of photon transport in waveguiding systems in the presence of a two-level system. In these systems, quantum interference effects generate a strong effective optical nonlinearity on the few-photon level. We clarify the relevant physical mechanisms through an appropriate quantum many-body approach. Based on this, we demonstrate that a single-particle photon-atom bound state with an energy outside the band can be excited via multi-particle scattering processes. We further show that these trapping effects are robust and, therefore, will be useful for the control of photon entanglement in solid-state based quantum optical systems.
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