中国人民大学理学院理论物理导师介绍：魏建华

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科研项目：

1.国家自然科学基金：有机纳米体系中载流子与外场相互作用及量子效应研究 （11074303），负责人；

2.人大科学研究基金：有机纳米电子学中的动力学阻抗和忆阻研究（11XNJ026），负责人；

3.自选课题：非平衡量子多体问题的计算方法；

4.国家自然科学基金：过渡族金属氧化物中轨道极化子的研究 （10604037），负责人。

5.国家科技部973项目：电荷、自旋和轨道有序现象及相互竞争与制约机理研究（2007CB925001），骨干。

近期论文：

1.D. Hou, J. H. Wei and S. J. Xie (2011): Gapped ferromagnetic graphene nanoribbons. Physical Chemistry Chemical Physics, DOI: 10.1039/c0cp02713h.

2.J. H. Wei, D. Hou and X. R. Wang (2010): Ferromagnetic insulator induced by Peierls instability at orbital order transition. New Journal of Physics 12, 053021

3.J. H. Wei, X. J. Liu, S. J. Xie And Yijing Yan (2009): Spin blockage in organic spintronics. Journal Of Chemical Physics 131, 064906

4.J. H. Wei, Y. L. Gao and X. R. Wang (2009): Inverse square-root field dependence of conductivity in organic field-effect transistors. Applied Physics Letters 94, 073301

5.J. H. Wei, X. J. Liu, J. Berakdar, and YiJing Yan (2008): Pathways of polaron and bipolaron transport in DNA double strands. Journal of Chemical Physics 128, 165101.

6.J. H. Wei, S. J. Xie, L. M. Mei and YiJing Yan (2007): Conductance switching, hysteresis, and magnetoresistance in organic semiconductors. Organic Electronics 8, 487.

7.J. H. Wei, S, J. Xie, L. M. Mei and YiJing Yan (2007): Bias-induced insulator-metal transition in organic electronics. Applied Physics Letters 91, 022115

魏建华，男，1999年在山东大学获得凝聚态物理学博士学位，博士学位论文获得山东省优秀论文奖。毕业后，先后在韩国首尔国立大学物理系，香港城市大学物理系，以及香港科技大学物理系和化学系工作与访问；2000年破格晋升为山东大学副教授；2007年调入中国人民大学，现被聘为中国人民大学教授，博士生导师。

主要从事过渡金属氧化物材料中轨道、电荷、自旋和晶格振动多个自由度耦合所导致的新奇量子效应、有机导体材料与分子纳米结构中的非平衡输运问题，以及多体强关联系统的非平衡输运问题方面的前沿研究，已在SCI主流学术期刊上发表学术论文五十余篇。

当前课题：

1纳米体系中的非平衡量子输运问题，包括有机纳米体系中载流子与外场相互作用及量子效应研究；有机纳米电子学中的动力学阻抗和忆阻研究等。

2.非平衡量子多体问题的计算方法研究。这套方法基于费因曼影响泛函理论，其表达式是一套（对系统-环境相互作用）非微扰的密度矩阵动力学方程组，可利用计算机高效地数值求解。密度矩阵动力学可求解从零温到高温、从弱关联到强关联等不同参数范围的非平衡（兼容平衡）量子多体问题。本课题将发展一套高效普适的求解非平衡多体相互作用的数值计算方法，以研究当前凝聚态物理同强关联作用相关的问题。
 
English Resume

Dr. Jianhua Wei was born on the 20th, October in 1972. He was graduated from Physics Department of Shandong University. In 1999, he received his Ph.D. in Shandong University, with his doctoral thesis being received the Outstanding Paper Award of Shandong Province. Dr. Jianhua Wei was appointed to be a teacher in Shandong University till 2007 and then he transferred to Renmin University of China. Presently, Dr. Jianhua Wei is the professor and supervisor of the Doctors in Physics Department, Renmin University of China.

Dr. Jianhua Wei is mainly engaged in following frontier researches: non-equilibrium quantum transport theory; orbital physics in transition metal oxide materials; and non-equilibrium many-body theory, etc. He has been published over 50 research papers in the mainstream academic journals.

At present, Dr. Jianhua Wei’s main research interest is to numerically solve the non-equilibrium quantum many-body problems. The formula is a set of non-perturbative dynamical equations of the density matrix, which can be efficiently solved by computers. This method can deal with different temperatures as well as different correlation strengths for many non-equilibrium many-body problems.