发表机构
Max-Planck-Institut für Quantenoptik; Munich Center for Quantum Science and Technology（马克斯·普朗克量子光学研究所; 慕尼黑量子科学与技术中心）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出腔里德伯量子光子学平台，生成光学光子混合纠缠态，实现世界纪录尺寸 $α^2=2.4$，并通过量子态层析验证，为量子信息处理提供新途径。
AI 中文摘要
我们引入腔里德伯量子光子学作为一种新型平台，用于产生光学光子的混合纠缠态。该系统实现了这些态的世界纪录大小，并有望在未来产生更大的态。在此产生的混合纠缠态中，两个相干态的叠加与另一束光路中光子携带的偏振量子比特纠缠。我们对这种混合纠缠态进行量子态层析成像，并评估各种关键性质。通过优化退相干，我们相比之前的混合纠缠态增大了尺寸，达到 $α^2= 2.4$。除了对薛定谔猫态的基础兴趣外，这项工作还因在量子信息处理领域的潜在应用而具有重要意义。
英文摘要
We introduce cavity Rydberg quantum photonics as a novel platform for generating hybrid entangled states of optical photons. The system achieves world-record sizes of these states and has the potential to produce yet larger states in the future. In the hybrid entangled state produced here, a superposition of two coherent states is entangled with a polarization qubit carried by a photon in another beam path. We perform quantum state tomography of this hybrid entangled state and evaluate various key properties. By optimizing the decoherence we increase the size compared to previous hybrid entangled states, reaching a size of $α^2= 2.4$. Besides the fundamental interest in Schrödinger cat states, this work is interesting because of potential applications in the field of quantum information processing.
