Analysis and control of multipartite quantum interactions for computation and communication

用于计算和通信的多方量子相互作用的分析和控制

• 批准号: RGPIN-2016-06117
• 负责人: Ghose, Shohini
• 金额: $ 2.4万
• 依托单位: Wilfrid Laurier University
• 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=633163
• 关键词: Analysis; control; multipartite; quantum; interactions

Quantum mechanics offers the possibility of developing novel information processing protocols that could revolutionize computing and communication. Algorithms based on quantum mechanical laws can already perform certain tasks dramatically faster than our fastest computers, and protocols such as teleportation and quantum cryptography can transform our secure communication capabilities. In order to build large-scale quantum information processing devices, it is necessary to accurately prepare, manipulate and measure many-body quantum systems. Much progress has been made in demonstrating quantum control and information processing on a small scale but the challenge grows with the size of the system and the characterization and efficient control of multipartite quantum systems remains an interesting open question. These multipartite systems can exhibit powerful non-classical correlations in the quantum regime, and nonlinear chaotic behaviour at the classical level.

量子力学提供了开发新型信息处理协议的可能性，这些协议可能会彻底改变计算和通信。基于量子机械定律的算法已经比我们最快的计算机更快地执行某些任务，而传送和量子加密等协议可以改变我们的安全通信功能。为了构建大型量子信息处理设备，有必要准确准备，操纵和测量多体量子系统。在小规模演示量子控制和信息处理方面取得了很多进展，但是随着系统的大小以及多部分量子系统的表征和有效控制，挑战仍然是一个有趣的开放问题。这些多方系统可以在量子状态下表现出强大的非经典相关性，而在经典层面上可以表现出非线性混沌行为。