论文标题
通过螺旋耦合谐振器波导通过障碍保护的量子状态传播
Disorder-Protected Quantum State Transmission through Helical Coupled-Resonator Waveguides
论文作者
论文摘要
我们预测通过螺旋耦合谐振器光学波导（H-Crows）传播的光子的时间不可区分性。 H-铁表现出伪摩肌锁定的分散体，我们显示出抑制现场障碍引起的反向散射和组速度波动。我们以数值方式模拟了两光子波袋的传播，表明它们几乎显示出几乎完美的Hong-ou-mandel浸入可见性，然后即使存在中度疾病，也可以保持其量子相干性，而与对疾病高度敏感的常规乌鸦相反。由于没有可区分性是量子信息处理的最基本资源，因此H-Crows可能会在新兴的量子光子通信和计算平台中找到实现强大的光学链路和延迟线的应用程序。
We predict the preservation of temporal indistinguishability of photons propagating through helical coupled-resonator optical waveguides (H-CROWs). H-CROWs exhibit a pseudospin-momentum locked dispersion, which we show suppresses onsite disorder-induced backscattering and group velocity fluctuations. We simulate numerically the propagation of two-photon wavepackets, demonstrating that they exhibit almost perfect Hong-Ou-Mandel dip visibility and then can preserve their quantum coherence even in the presence of moderate disorder, in contrast to regular CROWs which are highly sensitive to disorder. As indistinguishability is the most fundamental resource of quantum information processing, H-CROWs may find applications for the implementation of robust optical links and delay lines in the emerging quantum photonic communication and computational platforms.
