项目名称: 一维海森堡模型中的量子关联
项目编号: No.11305020
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 王晓茜
作者单位: 长春理工大学
项目金额: 22万元
中文摘要: 近年来,由于量子关联相较于量子纠缠更易获得以及维持时间更长,并且能够更好的应用到量子计算以及量子通信上,因此量子关联在不同量子系统中的特性研究以及如何量度刻画引起人们的广泛关注。通过前期的研究,我们发现量子混沌能够增大系统的量子关联,能够更好地应用到量子计算以及量子通信当中,本项目就是从量子关联在不同量子系统中的特性以及考虑量子混沌后的特性开展深入的研究。具体内容包括:(1)首先研究量子关联在不同海森堡模型中的性质,希望能够给出量子谐错在海森堡模型中的解析表达式,能够更好的了解量子关联的特性。(2)对相应的模型加上受激横场,海森堡模型可以产生相应的量子混沌现象,考虑在这种情况下量子混沌分别对近邻粒子以及次近邻粒子的量子关联的影响。本项目属于量子信息中的理论研究。
中文关键词: 伊辛模型;量子关联;量子谐错;量子混沌;高自旋系统
英文摘要: In recent years, quangtum correlations are obtained more easily and is kept longer than quantum entanglement. It can be well used to quangtum computation and quantum communication. So the properties and the measurement of quantum correlations in different quantum system have attracted much attention. In the early study, we have found that there is a relationship with quantum correlations and quantum chaos. This project aims to further study the relationship with quantum correlations and quantum chaos in different quantum systems, which mainly includes:(1) At first, we consider the properties of quantum correlations in different Heisenberg models, we want to give the expression of quantum discord in the Hesiberg models. In this case, we can well study the properties of quantum correlations. (2) We add the kicked external field in the Heisenberg models. There are quantum chaos in these Heisenberg models. Then we consider the quantum correlations effect in quantum chaos on the nearest-neighbor and next nearest neighbor in Heisenberg model. This project belongs to the field of quantum information.
英文关键词: Ising model;quantum correlation;quantum discord;quantum chaos;high spin system