Optical sources and systems for quantum information

量子信息光源和系统

• 批准号: 262464-2011
• 负责人: Godbout, Nicolas
• 金额: $ 2.33万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=525546
• 关键词: Optical; sources; systems; quantum; information

Quantum information is distinct from classical information by the fact that it is stored or transmitted using physical systems exhibiting properties of quantum mechanics. Quantum information can be efficiently transmitted as single photons over optical fibres. The science of quantum information enables communication tasks that are impossible to realize using a classical network such as the Internet. An important example of such a task is quantum cryptography, a technique enabling absolutely secure communications, no matter the technical resources of a potential spy.

量子信息与经典信息的不同之处在于，它是使用表现出量子力学特性的物理系统来存储或传输的。 量子信息可以作为单光子通过光纤有效地传输。 量子信息科学使得使用互联网等经典网络无法实现的通信任务成为可能。 此类任务的一个重要例子是量子密码学，这是一种能够实现绝对安全通信的技术，无论潜在间谍的技术资源如何。