Gao Xianlong
professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Honors and Titles : Program for New Century Excellent Talents in University
Gender : Male
Alma Mater : University of Science and Technology of China
Education Level : Graduate student graduate
Degree : Doctorate
Status : 在岗
School/Department : College of Mathematics, Physics and Information Engineering
Date of Employment : 2007-03-29
Discipline : physics
Business Address : Science Building 29#-429
Contact Information : 0579-82298507, 667810（short）
Email :
Hits :
First Author : 王婵娟
Affiliation of Author(s): 数理与信息工程学院
Date of Publication : 2012-01-01
Document Type : 期刊
Journal : 物理学报
Issue : 第12期
Page Number : 475-480
ISSN : 1000-3290
Translation or Not : no
Key Words : 局域密度近似；XXZ模型；相图；热力学硬度
Abstract : 本文借助于一维自旋1/2-XXZ模型的Bethe-ansatz精确解,利用局域密度近似(LDA),讨论了谐振势中一维无自旋费米子的密度分布,得出了ρ-u相图(这里的ρ为无量纲的粒子数密度变量,u为相互作用强度).对相图的分析表明,随着原子密度和近邻相互作用的变化,系统出现五个不同的混合量子相.通过对热力学硬度S_ρ的计算,发现其可作为体系的序参量,其奇异点可用以度量受限体系中量子相变的发生.
Born at Anhui Province, Feixi, Ph.D., Professor,
In 1998, Anhui University Department of Applied Physics, Theoretical Physics, Bachelor, Master,
In 2001, University of Science and Technology of China, Department of Astronomy and Applied Physics, Condensed matter physics, Ph.D
Research Interests:
1. Quantum properties of low-dimensional Fermi gas: Studying the exotic quantum phases due to the fermion species, pairing, the external potential, and the interaction;
2. Density functional theory of low-dimensioanl system;
Homogeneous low-dimensional systems are strictly solvable in many cases (eg using the Bethe-Ansatz technique, Bosonization, etc.), and for the inhomogeneous systems they are more complicated and can often be solved by using density functional theory. We study the applications of the density functional theory in the model system. Related examples can be found in the application of density functional theory in the inhomogeneous Hubbard model, non-uniform Lieb-Wu model, Anderson model and Bose-Fermi mixed system. The same idea can be used to deal with disordered problems, finite temperature effects, various dynamical problems;
3. Numerical study of low-dimensional strong correlation system: By means of strict diagonalization and numerical renormalization group, we discuss the ground state, especially the correlation function of low-dimensional systems;
4. Excitation properties of low-dimensional strongly correlation systems: studying low energy excitation such as spin-charge separation phenomenon, spin-drag effect due to the relative motion of different types of fermions, and the use of variational methods and local density approximation to solve the finite temperature, low energy excitation mode.
For students:
I am currently tutoring several graduate students for scientific research. At the same time, I am organizing and supervising a number of junior undergraduates for research and develop their research interests.
See details at http://physics.zjnu.edu.cn/2016/0303/c2480a26226/page.htm
Research team http://course.zjnu.cn/qm/gao/
