Fast optical switching and logic for optical quantum computing

用于光量子计算的快速光开关和逻辑

• 批准号: 345196-2007
• 负责人: Resch, Kevin
• 金额: $ 6.02万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=326019
• 关键词: Fast; optical; switching; logic; quantum

Quantum mechanics led to a revolution in science and technology that impacts our daily lives.  Devices, such as computer chips and lasers, are based firmly on quantum effects.  We are on the verge of the next wave of quantum technology, where exotic effects such as entanglement, uncertainty, and interference are harnessed to make blazingly fast computers and absolutely secure codes.  The most promising route to optical quantum computers is based on the recently discovered "one-way" model.  In this model, computation proceeds by making measurements on individual quantum particles from a large entangled "cluster" state.  Each measurement irreversibly eats away at the entanglement of the cluster, hence the name one-way. Measurement is an intrinsically random process in quantum mechanics.  The one-way model counteracts this randomness by adapting the future measurements settings based on the outcomes of ones past.  We will create entangled polarization states of light designed for the one-way model.  The capability to change measurement settings before the next photon arrives requires fast electrically-controlled polarization rotators called Pockels' cells, fast detection, and logic electronics.  This NSERC Research Tools and Instrumentation application is requesting funds for equipment enabling fast adaptive measurements which have not yet been implemented for one-way quantum computing.   This equipment will be used initially for one student's M.Sc. and Ph.D. projects.  In addition, one post-doctoral researcher and one undergraduate student (per year) will have access to the equipment.  These students will gain experience interfacing state-of-the-art optical equipment to computer-controlled experiments, and sensitive photon-counting devices.

量子力学导致了一场科学技术的革命，从而影响了我们的日常生活。设备，例如计算机芯片和激光器，主要基于量子效应。我们正处于下一波量子技术的边缘，在这些浪潮中，诸如纠缠，不确定性和干扰等外来效应是可以利用的，以制造出巨大的快速计算机和绝对安全的代码。光量子计算机的最有希望的途径是基于最近发现的“单向”模型。在此模型中，计算通过从大型纠缠“群集”状态对单个量子粒子进行测量来进行计算。每个测量值不可逆转地在集群的纠缠中吞噬，因此单向名称。测量是量子力学中本质上随机的过程。单向模型通过根据过去的结果调整未来测量设置来抵消这种随机性。我们将创建为单向模型设计的光的纠缠极化状态。在下一个光子到达之前更改测量设置的能力需要快速的电气控制的极化旋转器，称为Pockels的细胞，快速检测和逻辑电子产品。 NSERC研究工具和仪器应用程序是为设备提供资金，可实现快速自适应测量结果，这些测量尚未用于单向量子计算。这些设备最初将用于一个学生的硕士学位。和博士项目。此外，一名博士后研究人员和一名本科生（每年）将可以使用该设备。这些学生将获得与计算机控制的实验和敏感的光子计数设备的最新设备接口。