Bound states and entanglement generation in waveguide quantum electrodynamics
Bound states and entanglement generation in waveguide quantum electrodynamics
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DOI：
10.1103/physreva.94.043839
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发表时间：
2016-04
影响因子：
2.9
通讯作者：
P. Facchi;Myungshik Kim;S. Pascazio;F. Pepe;Domenico Pomarico;T. Tufarelli
中科院分区：
文献类型：
--
作者：
P. Facchi;Myungshik Kim;S. Pascazio;F. Pepe;Domenico Pomarico;T. Tufarelli
研究了两个量子发射体（二能级原子）嵌入线性波导中的准一维结构。由于原子可以发射，吸收和反射辐射，在单个原子衰变的条件下，这对原子可以自发地向纠缠的束缚态弛豫。我们分析了这些束缚态的性质，发生共振值的原子间距离，并讨论了它们的相关性与纠缠产生。研究了接近共振态的束缚态的稳定性，以及能量低于光子传播阈值的非共振束缚态的性质。
We investigate the behavior of two quantum emitters (two-level atoms) embedded in a linear waveguide, in a quasi-one-dimensional configuration. Since the atoms can emit, absorb and reflect radiation, the pair can spontaneously relax towards an entangled bound state, under conditions in which a single atom would instead decay. We analyze the properties of these bound states, which occur for resonant values of the interatomic distance, and discuss their relevance with respect to entanglement generation. The stability of such states close to the resonance is studied, as well as the properties of non resonant bound states, whose energy is below the threshold for photon propagation.