论文标题
从一系列非相互作用的光子发射器中生成高维纠缠的协议
Protocol for generation of high-dimensional entanglement from an array of non-interacting photon emitters
论文作者
论文摘要
将高维量子信息编码为单个光子可以为量子技术提供多种好处，例如提高噪声弹性。然而，对于当前和近乎未来的光子量子技术而言，有效地生成高维，高维的纠缠被认为是遥不可及的。我们使用$ n $ d $ d $ d $ d $ d $ doponic greenberger-horne-Zeilinger（GHz）陈述的近确定生成的协议，使用$ d $ d $ d $ nonteracting单光子发射器。我们分析了量子发射器的常见误差源的影响，例如光子光谱区分性和时间不匹配，并发现它们可以通过时间分辨的检测很容易纠正，以产生多个Qudits的高保真性GHz状态。当应用于量子密钥分布方案时，我们的协议在增加二进制编码以外的维度时会提高损失公差和关键速率。
Encoding high-dimensional quantum information into single photons can provide a variety of benefits for quantum technologies, such as improved noise resilience. However, the efficient generation of on-demand, high-dimensional entanglement was thought to be out of reach for current and near-future photonic quantum technologies. We present a protocol for the near-deterministic generation of $N$-photon, $d$-dimensional photonic Greenberger-Horne-Zeilinger (GHZ) states using an array of $d$ non-interacting single-photon emitters. We analyse the impact on performance of common sources of error for quantum emitters, such as photon spectral distinguishability and temporal mismatch, and find they are readily correctable with time-resolved detection to yield high fidelity GHZ states of multiple qudits. When applied to a quantum key distribution scenario, our protocol exhibits improved loss tolerance and key rates when increasing the dimensionality beyond binary encodings.
