研究量子信息领域的热点问题——量子关联及其动力学问题，以及与量子相变、量子混沌、量子度量学相关的问题。重点考察非微扰、非马尔科夫和非旋波近似的动力学过程，并从量子信息学角度理解和研究量子相变等问题。主要内容如下：(1) 利用级联方程方法研究量子关联的动力学行为，包括共同环境和独立环境等不同情况，突出非马尔可夫和强耦合的影响；(2) 研究较高维度以及多体系统的量子关联及其在量子相变问题中的应用，也将考虑环境中的量子相变及量子混沌对量子关联演化行为的影响；(3) 环境影响下的Landau-Zener（LZ）跃迁，包括有限温度和零温条件，突出非旋波项的作用。考虑两个及多个LZ系统的量子关联，得到LZ过程与量子关联的相互关系以及环境因素的影响； (4)量子关联在量子度量学中的应用。考虑量子Fisher信息与量子失协等概念的联系，量子关联对提高参数估计精度的作用，也计划考虑连续变量情况。

A hot research field of quantum information—quantum correlation and its dynamics in an environment, as well as the problems related to quantum phase transitions (QPT), quantum chaos and quantum metrology. We focus on the dynamics process of non-perturbative, non-Markov and non-rotating-wave approximation. Moreover, we can understand and study quantum-phase-transition problems by quantum information methods, which is quite innovative. The main content is as follows: (1) By using of the Hierarchy-equation method, we study the quantum correlation dynamics including common and independent environments, and highlight the impact of non-Markov and strong coupling; (2) We study the quantum correlation in high-dimensional and multi-body systems, and make use of it into QPT problems. We will also consider the environments with QPT and quantum chaos; (3) We consider the Landau-Zener (LZ) transition in an environment including finite-temperature and zero-temperature conditions and highlight the role of non-rotating-wave terms. We also consider the quantum correlations in two or multiple LZ systems. We try to find the relation between the LZ process and quantum correlation under the influence of environment; (4) Application of quantum correlations in quantum metrology. We will consider the relation between the quantum Fisher information and quantum discord, in order to find the role of quantum correlations in improving the parameter estimation accuracy. We also plan to consider the cases of continuous variables.