Faculty

Professor

Department of Physics, Tsinghua University

Tel.: +8610-62772695

Fax：8610-62781604

Email: dongruan@tsinghua.edu.cn

Professor of Physics, Department of Physics, Tsinghua University, 2003.12- Associate Professor, Department of Physics, Tsinghua University, 1999.7-2003.12

Lecturer, Department of Physics, Tsinghua University, 1997.8-1999.7

（1）“Group Physics”, Graduate Course,（Spring, 2004-2002, 2000-1999）

（2）“University Physics (BII)”, Undergraduate Course,（Fall, 2003, 2001-1997）

（3）“New Developments on Modern Physics”, Graduate Course（Spring, 2004-2002）

（4）“Nuclear Physics and Nuclear Reaction”, Graduate Course（Spring, 1999-1997）

（1）Symmetry, solvablity and integrablity in quantum systems.

（2）Representation theory of group and algebra and their applications to physics, such as algebraic method in nuclear physics.

（3）Quantum Information

（1）Nonlinear Dynamical Symmetries in Nucleus under the Extreme Conditions, supported by the National Natural Science Foundation of China under Grant 10275038.

（2）Algebraic Method in Nuclear、Atomic and Molecule Physics, supported by the National Natural Science Foundation of China under Grant 19905005.

（3）Nonlinear Algebraic Approaches to Quantum Many-Body Problems, supported by Tsinghua Natural Science Foundation under Grant 0430102.

（4）Algebraic Approach to the Spectrum and Decay of Hadrons, supported by Tsinghua Natural Science Foundation under Grant 98JC079.

Awards a: “Excellent Young Academic Paper Award”, Beijing Science and Technique Society, Second class, 2003.

b: “Fok Ying-Dong Excellent Young Teacher Award”, Ministry of Education, Third class, 2002.

Professional Activities

a: Visiting researcher, Center of Theoretical Nuclear Physics, National Laboratory for Heavy Ion Accelerator of Chinese Academy of Sciences, 1998-

b: Member of Teaching Committee of Chinese Physical Society, 2004-

（1）Dong Ruan et al., General realization of N=4 supersymmetric quantum mechanics and its applications, J. Math. Phys. 44 (7) (2003) 2787-2805.

（2）Dong Ruan, Boson realizations of the polynomial angular momentum algebras with arbitrary powers and their unitarization, Phys. Lett. A 319 (1-2)(2003) 122-129.

（3) Dong Ruan et al., Single Boson Realizations of the Higgs Algebra, Commun. Theor. Phys. 40 (1) (2003) 73–76.

（4）Dong Ruan et al., N=4 superconformal quantum mechanics in one dimension and its algebraic structure, Commun. Theor. Phys. 38 (1) (2002) 11-14.

（5）Dong Ruan et al., Indecomposable Representations of the Square-root Lie Algebras of Vector Type and Their Boson Realizations, Commun. Theor.Phys. 35 (5) (2001) 513-518.

（6）Dong Ruan et al., The Semiunitary Transformation and Isospectral Hamiltonians in Arbitrary Dimensional Space, Commun. Theor. Phys. 36 (1)(2001) 25-28.

（7）Dong Ruan et al., Boson and differential realizations of polynomial angular momentum algebra, J. Math. Phys. 42(6) (2001) 2718-2724.

（8）Dong Ruan et al., The branching rules for U(7)->O(7)->G2->O(3), Commun. Theor. Phys. 33(2) (2000) 221-226.

（9）Dong Ruan et al., Indecomposable representations of the nonlinear Lie algebras, J. Math. Phys. 41(11) (2000) 7839-7854.

（10）Dong Ruan et al., Indecomposable representations of the nonlinear angular momentum algebra of quadratic type, Commun. Theor. Phys. 34 (4)(2000) 643-648.

（11）Dong Ruan et al., On a Type of Nonlinear Lie Algebras, Phys. Lett., A274 (1-2) (2000) 1-4.

（12）Dong Ruan et al., Spinor representation reduction factors for O(N)->O(N-1), Commun. Theor. Phys. 32 (1) (1999) 115-118.

（13）Dong Ruan et al., Supersymmetric Quantum Mechanics in d-dimensional Space, Commun. Theor. Phys., 32 (3) (1999) 477-480.

（14）Dong Ruan et al., Boson Realization of Nonlinear SO(3) algebra, Phys. Lett., A263 (1-2) (1999) 78-82.

（15）Dong Ruan et al., Algebraic expressions for some SO(N) Racah coefficients for the two-rowed irreducible representations, Commun. Theor. Phys. 31(2) (1999) 233-238.

（16）Dong Ruan et al., Algebraic expressions for some SO(N) Racah coefficients, J. Math. Phys. 39 (1998) 6225.

（17）HongZhou Sun and Dong Ruan, The branching rules for SU(2N)->(SU(N)->O(N)->

O(3))*SU(2) and the highest weight states for groups SU(N) and O(N), Commun. Theor. Phys. 29(4) (1998) 571-578.

（18）HongZhou Sun and Dong Ruan, Algebraic expressions for O(N)->O(N-1) reduction factors for the three-rowed irreducible representations, J.Math. Phys. 39 (1998) 630-648.

（19）GuiLu Long, Dong Ruan et al., Splitting of one-phonon coupling states in the weakly coupling model, Chinese. Phys. Lett. 15(1) (1998) 5-7.

（20) HongZhou Sun, QiZhi Han, Mei Zhang, and Dong Ruan, Reduction factors for

O(N)->O(N-1), Commun. Theor. Phys. 30 (4) (1998) 541-550.