Education and Employment

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

Teaching

（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）

Interests

（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

Projects as program director:

（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 and Membership

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-

Selected Publications

（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.