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 :


Paper achievements

Fermion Coherent State Studies of One-Dimensional HubbardModel

Hits :

First Author : Lin Ji

Affiliation of Author(s): 数理与信息工程学院

Date of Publication : 2007-01-01

Document Type : 期刊

Journal : Communications in Theoretical Physics

Volume: Vol.47

Issue : No.1

Page Number : 161-166

ISSN : 0253-6102

Translation or Not : no

Key Words : Hubbard;model;fermion;coherent;state;density;functional;theory

Abstract : We present a comparative study of the ground state of theone-dimensional Hubbard model. We first use a new fermion coherentstate method in the framework of Fermi liquid theory byintroducing a hole operator and considering the interactions oftwo pairs elec

Pre One : Phase diagram of a non-Abelian Aubry-Andr¡§|-Harper model with p-wave superfluidi

Next One : Calculation of the ground state of the one-dimensional two-impurity Anderson model

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Personal Profile

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/