Metasurface quantum graphs for generalized Hong-Ou-Mandel interference

• 成果类型: Article
• 署名作者: Yousef, Kerolos M. A.; D'Alessandro, Marco; Yeh, Matthew; Sinclair, Neil; Loncar, Marko; Capasso, Federico
• 署名单位: Harvard University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13174
• DOI: 10.1126/science.adw8404
• 发表日期: 2025-07-24
• 页码: 416-422
• 关键词: computation; INFORMATION; photons

摘要

Multiphoton interference and entanglement are fundamental to quantum information science, yet extending these effects to higher-dimensional systems remains challenging given the imperfections and complexity of scaling conventional linear-optical setups. We present a generalized Hong-Ou-Mandel effect using metasurfaces and graph theory, achieving controlled multiphoton bunching, antibunching, and entanglement across parallel Jones matrix-encoded spatial modes-all within a single-layer metasurface. A graph-theoretic dual framework is introduced that simultaneously encodes the metasurface-based multiport interferometer designs and its resulting nonclassical correlations, enabling the direct translation of linear quantum optical networks into a single-layer metasurface. We also demonstrate the ability of metasurfaces to produce multipath-entangled states and perform transformations equivalent to higher-order Hadamard interferometers. Our results underscore metasurface quantum graphs for scalable, low-decoherence quantum information infrastructure.