基于少体关联系统的量子态调控与探测的研究

项目名称： 基于少体关联系统的量子态调控与探测的研究

项目编号： No.11505126

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 张禧征

作者单位： 天津师范大学

项目金额： 20万元

中文摘要： 外场以及粒子与粒子之间的相互作用可以诱导出许多奇特的物理现象并在量子信息领域中展现出广阔的应用前景。然而关联粒子团簇对于外场以及粒子间相互作用强度的敏感性使得其在实验上变得难于操控。基于此，本项目一方面将深入探讨少体关联系统的动力学行为，在Hubbard系统中给出多粒子远程纠缠态制备的方案；探究外场对于关联粒子对输运及其稳定性的影响，构建最适的量子态调控方案并将其应用到实验系统中。另一方面，本项目还将研究复数的相互作用对系统动力学性质的影响，给出系统能谱奇点物理解释。相关研究不仅可以丰富关联系统中操控量子态的方法和手段，还有可能把对量子信息处理问题的探索和量子物理中的基本问题的研究联系起来。

中文关键词： 量子态；动力学；少体关联系统；量子控制；非厄米系统

英文摘要： The external field and the particle-particle interaction can induce the exotic physical phenomena, which exhibit wide application prospect in the regime of quantum information. However, the correlated cluster is difficult to control owing to its sensitivity to the interaction and external field. Based on this, this proposal is aimed to explore the dynamics of the few-body correlated system and presents a scheme to realize remote entangled state preparation in the framework of the Hubbard model. This proposal is also devoted to establish the optimal schemes of the manipulation of the quantum state and apply them to the real system via investigating the effect of an external field on the transport and stability of the correlated particles. On the other hand, we study the influence of the complex interacting strength on the dynamics property and give the physical interpretation of the spectral singularity in the non-Hermitian correlated system. The corresponding research can not only enrich the method of manipulation of quantum state in the correlated system but also connect the research to the basic concepts of quantum physics.

英文关键词： quantum state;dynamics;few-body correlated system;quantum manipulation;non-Hermitian system