Opt Lett. 2023 Jul 1;48(13):3595-3598. doi: 10.1364/OL.492705.
We investigate the single photon scattering in a phonon-photon hybrid system in the waveguide quantum electrodynamics (QED) scheme. In our consideration, an artificial giant atom, which is dressed by the phonons in a surface acoustic wave resonator, interacts with a coupled resonator waveguide (CRW) nonlocally via two connecting sites. Together with the interference effect by the nonlocal coupling, the phonon serves as a controller to the transport of the photon in the waveguide. On the one hand, the coupling strength between the giant atom and the surface acoustic wave resonator modulates the width of the transmission valley or window in the near resonant regime. On the other hand, the two reflective peaks induced by the Rabi splitting degrade into a single one when the giant atom is large detuned from the surface acoustic resonator, which implies an effective dispersive coupling. Our study paves the way for the potential application of giant atoms in the hybrid system.
我们研究了波导量子电动力学（QED）方案中声子-光子混合系统中的单光子散射。在我们的考虑中，一个人工的巨原子通过两个连接点与耦合谐振波导（CRW）非局域相互作用，该原子被表面声波谐振器中的声子所修饰。与非局域耦合的干涉效应相结合，声子成为波导中光子输运的控制器。一方面，巨原子与表面声波谐振器之间的耦合强度调制了近共振时的传输谷或窗口的宽度。另一方面，当巨原子与表面声波谐振器大幅失谐时，由拉比分裂引起的两个反射峰会降级为一个，这意味着存在有效的色散耦合。我们的研究为在混合系统中应用巨原子铺平了道路。
