标题： 基于电光效应的横向模态纠缠片上验证方案 显示英文标题

标题： Scheme for on-chip verification of transverse mode entanglement using the electro-optic effect

摘要： 在新兴的量子增强技术中的关键成分是能够相干地操控和检测基态的叠加态。 在集成光学实现中，由多模结构支持的横向空间模式为量子叠加态提供了一个有吸引力的载体。 在这里，我们提出了一种基于非线性通道波导中电光效应的集成动态模式转换器，用于在相互非正交的空间模式基之间进行确定性的变换。 我们理论上展示了其通过测量由集成光子对源生成的空间模式纠缠光子对来演示贝尔型 Clauser-Horne-Shimony-Holt 不等式的违反能力。 所提出的配置针对磷酸钛钾（KTP）材料进行了数值研究，可以使用标准的集成光学制造技术轻松实现。 显示英文摘要

摘要： A key ingredient in emerging quantum-enhanced technologies is the ability to coherently manipulate and detect superpositions of basis states. In integrated optics implementations, transverse spatial modes supported by multimode structures offer an attractive carrier of quantum superpositions. Here we propose an integrated dynamic mode converter based on the electro-optic effect in nonlinear channel waveguides for deterministic transformations between mutually non-orthogonal bases of spatial modes. We theoretically show its capability to demonstrate a violation of a Bell-type Clauser-Horne-Shimony-Holt inequality by measuring spatially mode-entangled photon pairs generated by an integrated photon pair source. The proposed configuration, numerically studied for the potassium titanyl phosphate (KTP) material, can be easily implemented using standard integrated optical fabrication technology.