A bright integrated photon pair source

• 来源期刊: 中国科学:物理学 力学 天文学（英文版）
• 年，卷（期）: 2020,（2）
• 页码范围: 1-2
• 页数: 2页
• 语种: 英文

摘要

The generation and detection of single photons and photon pairs are crucial to quantum information processing [1-7].Of the various techniques,integrated photonics plays an important role.It has the advantages of mature complementary metal-oxide-semiconductor (CMOS) mass-fabrication,miniaturization,scalability,stability and reconfigurability,thus becoming a natural choice for integrated quantum information processing.However,due to the lack of second-order nonlinearity,the silicon chip usually adopts the relatively weak third-order nonlinear interaction,namely the spontaneous four-wave mixing,to generate photon pairs.