使用多端口分束器预报高维贝尔和Greenberger-Horne-Zeilinger态
Heralding Higher-Dimensional Bell and Greenberger-Horne-Zeilinger States Using Multiport Splitters
AI总结：
提出基于多光子干涉的资源高效方案，预报qubit GHZ态、高维贝尔态和高维三方GHZ态，适用于任意自由度且成功率高。
摘要：
量子光学实验和应用中最重要的资源之一是按需提供的高度纠缠多光子量子态。一种有前景的生成方法是通过让独立光子干涉，以高速率预报纠缠的产生。然而，此类方案通常仅适用于干涉光子的特定内部自由度。随着纠缠光子数量增加，成功概率降低，而所需资源（如辅助光子和光学元件）数量增加。因此，为了使概率方案也适用于更大的量子态，找到资源高效且具有高成功概率的生成方案非常重要。在本工作中，我们引入了易于实现的方案来预报qubit Greenberger-Horne-Zeilinger（GHZ）态、高维贝尔态和高维三方GHZ态。我们的方案仅依赖多光子干涉，即它们可以调整以适用于任意自由度。此外，这些方案展示了高成功概率，且仅需相对较少的辅助光子。
英文摘要：
One of the most important resources for quantum optical experiments and applications are on-demand highly entangled multiphoton quantum states. A promising way of generating them is heralding entanglement generation at a high rate from letting independent photons interfere. However, such schemes often work for a specific internal degree of freedom of the interfering photons only. Going to higher numbers of entangled photons, the success probabilities decrease while the number of necessary resources, e.g., auxiliary photons and optical elements, increases. To make probabilistic schemes feasible also for larger quantum states, it is therefore important to find resource-efficient generation schemes with high success probabilities. In this work, we introduce easily implementable schemes to herald qubit Greenberger-Horne-Zeilinger (GHZ) states, higher-dimensional Bell states and higher-dimensional three-party GHZ states. Our schemes solely rely on multiphoton interference, i.e., they can be adjusted to work for arbitrary degrees of freedom. Furthermore, they demonstrate high success probabilities and need comparably few auxiliary photons.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
