Multipartite Entanglement, Multimode Squeezing, and Non-Gaussian Light from Quantum Cascades and Concurrences

量子级联和并发中的多部分纠缠、多模压缩和非高斯光

• 批准号: 0555522
• 负责人: Olivier Pfister
• 金额: --
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2010-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0555522&HistoricalAwards=false
• 关键词: Multipartite; Entanglement; Multimode; Squeezing; Non

This experimental research program focuses on the generation of multipartite entanglement, multimode squeezing, and non-Gaussian light by use of optical parametric oscillators (OPO) based on quantum cascades and quantum concurrences. The experimental realization of such states appears now well within reach and is one of the objectives of this project. Another flavor of coincident nonlinearities is cascading, long known for its ability to create nonlinear phase shifts. The program will probe the ability of such systems to efficiently realize effective third-order nonlinearities and generate quantum light with a non-Gaussian Wigner function, which is of great interest for implementing nontrivial quantum information protocols, such as entanglement purification, using continuous variables and bright beams. The broader impact of the program involves education of students and advanced course development as well as collaboration with engineering faculty.

该实验研究项目的重点是利用基于量子级联和量子并发的光参量振荡器（OPO）产生多部分纠缠、多模压缩和非高斯光。这种状态的实验实现现在看来已经触手可及，也是该项目的目标之一。重合非线性的另一种形式是级联，长期以来因其产生非线性相移的能力而闻名。该计划将探讨此类系统有效实现有效三阶非线性并产生具有非高斯维格纳函数的量子光的能力，这对于实现非平凡的量子信息协议（例如纠缠纯化、使用连续变量和明亮的光束。该计划更广泛的影响涉及学生教育和高级课程开发以及与工程学院的合作。