近日，美国中佛罗里达大学Andrea Blanco-Redondo团队研究了高维拓扑光子纠缠。该项研究成果发表在2026年3月26日出版的《科学》杂志上。

高维量子态的生成与调控是现代量子计算的核心。利用拓扑特性来鲁棒地编码和传输量子信息已在凝聚态物理中得到广泛研究，并近期拓展至量子光子学领域。然而，迄今为止仍缺乏一条将拓扑光子模式扩展至大量纠缠态的可行路径。

研究组展示了一种生成高维拓扑光子纠缠的方法。该平台基于设计的硅光子波导拓扑超晶格，支持在多个拓扑模式的叠加态上非线性产生能量-时间纠缠光子对。他们展示了多达五个拓扑模式间的强纠缠特征，且其对纳米加工缺陷具有鲁棒性，为构建可扩展、容错的量子光子态提供了一条可行路径。

附：英文原文

Title: High-dimensional topological photonic entanglement

Author: M. Javad Zakeri, Armando Perez-Leija, Andrea Blanco-Redondo

Issue&Volume: 2026-03-26

Abstract: The generation and manipulation of high-dimensional quantum states lies at the heart of modern quantum computation. The use of topology to resiliently encode and transport quantum information has been widely investigated in condensed matter and has recently penetrated quantum photonics. However, a route to scale up to a large number of entangled topological photonic modes has been missing. In this work, we demonstrate a method to generate high-dimensional topological photonic entanglement. Our platform relies on designed silicon photonic waveguide topological superlattices, which support nonlinear generation of energy-time–entangled photon pairs on a superposition of multiple topological modes. We show strong signatures of entanglement of up to five topological modes with resilience to nanofabrication imperfections, providing a route toward scalable, fault-tolerant quantum photonic states.

DOI: aec1344

Source: https://www.science.org/doi/10.1126/science.aec1344