量子测不准关系、量子非定域性及量子信息相关研究

Quantum physics plays key roles in quantum information processing and quantum computation. The quantum uncertainty principle, quantum non-locality, quantum correlations in multipartite quantum systems are the fundamental characters of quantum physics. We investigate the characterization of these phenomena and the relations among them: state-dependent or state-independent multi-observable uncertainty relations for arbitrary dimensional multipartite systems, in terms of sum and product form of variance or deviation, probability distribution, error and disturbance and with or without quantum memories; the relations between the uncertainty relations under local measurements and the quantum correlations; Bell inequalities, local hidden variable models, quantum steering, as well as the related experimental verifications and the applications in quantum information processing such as quantum cryptography.

量子物理在量子信息处理和量子计算中起到极其关键的作用，量子测不准原理、量子非局域性、多量子系统子系统间的量子关联等是量子体系的基本和重要特征。项目研究这些现象的刻画和联系：任意维数体系、多个可观察量方差加和及乘积形式的、测量概率分布形式的、扰动和误差形式的、依赖及不依赖于量子态的、有存储和没有存储下的测不准关系；局部测量下测不准关系与量子关联间的联系；Bell不等式、隐变量模型及单边量子操控理论，相关实验验证及在量子保密通讯等量子信息处理方面的应用。

量子物理在量子信息处理和量子计算中起到极其关键的作用，量子测不准原理、量子非局域性、多量子系统子系统间的量子关联等是量子体系的基本和重要特征。项目研究了这些现象的刻画和联系：任意维数体系、多个可观察量方差加和及乘积形式的、测量概率分布形式的、扰动和误差形式的、依赖及不依赖于量子态的、有存储和没有存储下的测不准关系；局部测量下测不准关系与量子关联间的联系；Bell不等式、隐变量模型及单边量子操控理论，相关实验验证及在量子保密通讯等量子信息处理方面的应用。项目研究达到预期研究目标，取得了一系列成果。发表（项目号标注）学术论文120 篇，其中SCI 一区论文6篇（包括Phys. Rev. Lett. 4篇, NPJ Quant. Inform. 一篇，top一区 Sci. China Phys. Mech. & Astron.1篇），SCI二区论文61篇（包括Phys. Rev. A系列25篇）。