Towards High-Dimensional Entanglement in Path:Photon-Source Produced from a Two-Dimensional Atomic Cloud

• 作者: Shaoxing Liu Xuanying Lai Ce Yang J.F.Chen
• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS)
• 页码范围: 38-42
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/0256-307X/38/8/084201

摘要

A photon sougfrce with high-dimensional entanglement is able to bring increasing capacity of information in quan-tum communication.The dimensionality is determined by the chosen degree of freedom of the photons and is limited by the complexity of the physical systems.Here we propose a new type of high-dimensional entangled photon source,generated via path-indistinguishable scheme from a two-dimensional atomic cloud,which is pre-pared in a magneto-optical trap.To verify the photon source,we demonstrate experimentally the quantum state of the single photons heralded by its partner photon,with homodyne tomographic technology.