光子两自由度超并行量子计算与超纠缠态操控
发布时间：2019-08-12 14:47
【摘要】：光子系统在量子信息处理和传输过程中有非常重要的应用.譬如,利用光子与原子(或人工原子)之间的相互作用,可以完成信息的安全传输、存储和快速的并行计算处理等任务.光子系统具有多个自由度,如极化、空间模式、轨道角动量、时间-能量、频率等自由度.光子系统的多个自由度可以同时应用于量子信息处理过程.超并行量子计算利用光子系统多个自由度的光量子态同时进行量子并行计算,使量子计算具有更强的并行性,且需要的量子资源少,更能抵抗光子数损耗等噪声的影响.多个自由度同时存在纠缠的光子系统量子态称为超纠缠态,它能够提高量子通信的容量与安全性,辅助完成一些重要的量子通信任务.在本综述中,我们简要介绍了光子系统两自由度量子态在量子信息中的一些新应用,包括超并行量子计算、超纠缠态分析、超纠缠浓缩和纯化三个部分.
[Abstract]:Photonic system has a very important application in quantum information processing and transmission. For example, by using the interaction between photons and atoms (or artificial atoms), the secure transmission of information, storage and fast parallel computing can be completed. The photonic system has many degrees of freedom, such as polarization, spatial mode, orbital angular momentum, time-energy, frequency and so on. Multiple degrees of freedom of photonic systems can be applied to quantum information processing at the same time. Superparallel quantum computing uses multiple degrees of freedom of photons to carry out quantum parallel computation at the same time, which makes quantum computing have stronger parallelism, needs less quantum resources, and can resist the influence of noise such as photonic number loss. The quantum states of photonic systems with multiple degrees of freedom entangled at the same time are called superentangled states, which can improve the capacity and security of quantum communication and assist in the completion of some important quantum communication tasks. In this review, we briefly introduce some new applications of two-degree-of-freedom quantum states in photonic systems in quantum information, including hyperparallel quantum computing, hyperentanglement analysis, hyperentanglement concentration and purification.
【作者单位】： 北京师范大学物理学系;
【基金】：国家自然科学基金(批准号:11474026)资助的课题~~
【分类号】：TP338.6;O413
，
本文编号：2525778
[Abstract]:Photonic system has a very important application in quantum information processing and transmission. For example, by using the interaction between photons and atoms (or artificial atoms), the secure transmission of information, storage and fast parallel computing can be completed. The photonic system has many degrees of freedom, such as polarization, spatial mode, orbital angular momentum, time-energy, frequency and so on. Multiple degrees of freedom of photonic systems can be applied to quantum information processing at the same time. Superparallel quantum computing uses multiple degrees of freedom of photons to carry out quantum parallel computation at the same time, which makes quantum computing have stronger parallelism, needs less quantum resources, and can resist the influence of noise such as photonic number loss. The quantum states of photonic systems with multiple degrees of freedom entangled at the same time are called superentangled states, which can improve the capacity and security of quantum communication and assist in the completion of some important quantum communication tasks. In this review, we briefly introduce some new applications of two-degree-of-freedom quantum states in photonic systems in quantum information, including hyperparallel quantum computing, hyperentanglement analysis, hyperentanglement concentration and purification.
【作者单位】： 北京师范大学物理学系;
【基金】：国家自然科学基金(批准号:11474026)资助的课题~~
【分类号】：TP338.6;O413
，
本文编号：2525778
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