耦合腔阵列中基于里德堡相互作用调控的量子路由(英文)

Quantum router regulated by Rydberg interaction in decussate coupled-resonator waveguides

建立一个单光子路由器模型,由一个中心腔与作为量子通道的交叉耦合谐振腔波导耦合,中心腔中放置两个具有里德堡相互作用的原子.在经典光场的作用下,一个受Rydberg相互作用调节的三能级原子可被视为一个路由光子的量子发射器.两种Rydberg相互作用对透射光谱有不同的影响.两个不同频率的光子可以被路由,其中一个可通过控制里德堡相互作用和拉比频率关闭,一种频率的光子可以被转移.基于这些特性,该模型是一种实现多频率光子路由器的可行方案,可用于单光子器件的设计.

A single-photon router model made of two Rydberg interaction atoms in one center cavity coupled with a decussate coupled-resonator waveguides as a quantum multi-channel was constructed.In the presence of a classical light field,a three-level atom regulated by Rydberg interactions can be regarded as a quantum emitter to routing photons and it can be found that two Rydberg interactions have different influences on the transmitting spectra.Two different frequencies of photons can be routed and one of which be turned off by controlling Rydberg interactions and Rabi frequency.It can be found that one kind of frequency of photons can be transmitted.Based on these characteristics,it could be a feasible scheme to generate a multi-frequency photons router and be useful for designing the single-photon devices.