Optical Quantum Communication Protocols

光量子通信协议

• 批准号: RGPIN-2017-04482
• 负责人: Lutkenhaus, Norbert
• 金额: $ 2.62万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633053
• 关键词: Optical; Quantum; Communication; Protocols

Quantum communication offers unprecedented abilities over what we can today with classical communication. Heisenberg’s Uncertainty Principle allows creating secret keys between two distant parties without computational assumption about eavesdroppers along the connecting line, simply because any attempt by an adversary to look at the signal will disturb it. In quantum information, classical bits are being replaced by qubits, which cannot only take values zero or one, but a continuum of states in-between. That helps, for example, in comparing large files or schedule appointments as one can encode many more different messages into a smaller number of quantum signals.

量子通信比我们今天的经典通信提供了前所未有的能力。海森堡的不确定性原理允许在两个相距遥远的方之间创建密钥，而不需要对连线上的窃听者进行计算假设，原因很简单，因为对手试图查看信号都会干扰信号。在量子信息中，经典比特正在被量子位所取代，量子位不仅可以取0或1的值，还可以取两者之间的连续状态。这有助于，例如，比较大的文件或日程安排约会，因为人们可以将更多不同的信息编码成更少的量子信号。