论文标题
偶极耦合缺陷对作为确定性纠缠光子对源
Dipole-Coupled Defect Pairs as Deterministic Entangled Photon Pair Sources
论文作者
论文摘要
可扩展的量子系统需要确定性的纠缠光子对源。在这里，我们演示了一种使用偶极耦合的缺陷对来确定性发射极化键入光子对的方案。基于此方案，我们预测光谱特征并用可实现的系统参数量化纠缠。我们描述了如何通过精确调整过渡频率来优化钟状态的保真度和效率。基于缺陷的纠缠光子对源将提供许多优势，包括灵活的片上光子积分和通过外场，电磁环境和缺陷选择的可调发射属性。
Scalable quantum systems require deterministic entangled photon pair sources. Here, we demonstrate a scheme that uses a dipole-coupled defect pair to deterministically emit polarization-entangled photon pairs. Based on this scheme, we predict spectroscopic signatures and quantify the entanglement with physically realizable system parameters. We describe how the Bell state fidelity and efficiency can be optimized by precisely tuning transition frequencies. A defect-based entangled photon pair source would offer numerous advantages including flexible on-chip photonic integration and tunable emission properties via external fields, electromagnetic environments, and defect selection.
