Ph.D, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China, 06/1994.
Professor, Institute of Physics, Chinese Academy of Sciences, Beijing, China, 2/2002 -
Research Scientist, Bartol Research Institute, University of Delaware, Newark, USA, 07/2000 - 01/2002.
Research Scientist, Department of Physics, University of Texas at Austin, Austin, USA, 07/1998 - 06/2000.
Associate Professor, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China, 07/1996 - 06/1998.
Postdoctoral Fellow, Institute of Physics, Chinese Academy of Sciences, Beijing, China, 07/1994 - 06/1996.
Visiting Professor, Department of Applied Mathematics, University of Waterloo, Canada, 5/2002 - .
Visiting Professor, Laboratorio De Fisica De Sistemas Pequenos Y Nanotecnologia, Madrid, Spain, 02/2002 - 04/2002.
Visiting Scientist, Department of Mathematics, University of Pennsylvania, USA, 10/2000 - 10/2000.
Visiting Scientist, Center for Nonlinear Studies, Los Alamos National Laboratory, USA, 02/1998 - 03/1999.
Visiting Scientist, Mathematical Sciences Research Institute, University of California at Berkeley, USA, 01/1999 - 01/1999.
Visiting Scientist, Center for Nonlinear Studies, Los Alamos National Laboratory, USA, 12/1998 - 01/1999.
Visiting Scientist, Solid State Division, Oak Ridge National Laboratory, USA, 11/1998 - 11/1998.
Visiting Scientist, Institute of Theoretical Physics, University of California at Santa Barbara, USA, 09/1998 - 10/1998.
Visiting Scientist, Solid State Division, Oak Ridge National Laboratory, USA, 07/1998 - 08/1998.
1. Mathematical methods in Physics (PACS number 02.):
1.1. Matrix theory (02.10.Yn):
Random matrix theory and its applications in the quantum transport, the quantum chaos, the mesoscopic systems, the quantum Hall effect systems, etc.
1.2. Integrable systems (02.30.Ik), partial differential equations (02.30.Jr), inverse problems (02.30.Zz) and solitons (05.45.Yv):
Integrable and near-integrable statistical physical models, condensed matter models and nonlinear partial differential equations in general physics: the exact solutions, solitons, instantons, vortices, asymptotic solutions, adiabatic dynamics, stochastic dynamics, nonlinear dynamics, nonequilibrium dynamics, long-time behavior, etc.
2. Matter waves, quantum condensation phenomena and superfluidity (PACS number 03.):
Matter waves (03.75.-b), quantum condensation phenomena (03.75.Fi), Bose-Einstein condensates (03.75), quantum fluids and solid (67.), liquid and solid helium (67.), boson degeneracy and superfluidity of ^4He (67.20+k), mixed systems, liquid ^3He and ^4He mixtures (67.60.-g), etc.
3. Electronic structure and electrical properties of thin films and low dimensional structure (PACS number 73.):
Weak or Anderson localization (73.20.Fz), delocalization processes (73.20.Jc), collective excitations (73.20.Mf), electron states and collective excitations in multilayers, quantum wells, mesoscopic and nanoscale systems (73.21.-b), electronic transport in mesoscopic systems (73.23.-b), electronic transport in mesoscopic or nanoscale materials and structures (73.63.-b), etc.
4. Theory of magnetic properties and materials (PACS number 75.):
General theory and models of magnetic ordering (75.10.-b), classical spin models (75.10.Hk), quantized spin models (75.10.Jm), band and itinerant models (75.10.Lp), intrinsic properties of magnetically ordered materials (75.30.-m), spin waves (75.30.Ds), exchange and superexchange interactions (75.30.Et), spin density waves (75.30.Fv), magnetic anisotropy (75.30.Gw), magnetic impurity interactions (75.30.Hx), magnetic phase boundaries (75.30.Kz), valence fluctuation and Kondo lattice and heavy fermion phenomena (75.30.Mb), colossal magnetoresistance (75.30.Vn), macroscopic quantum phenomena in magnetic systems (75.45.+j), domain effects (75.60.-d), magnetic properties of thin films (75.70.-i), magnetic properties of nanostructures (75.75.+a), spin polarized transport (72.25.-b), etc.
5. Quantum phase transition theory:
Quantum phase transition theory and its applications in the Nanomaterials, the Josephson-junction arrays, the quantum Hall effect systems, the high-T_c superconductor, the strongly corrected electron systems, the conductor near its metal-insulator transition, the two-dimensional films, the magnetic systems, etc.
6. Quantum many-body theory:
Quantum many-body theory and its applications in the nanomaterials, the quantum Hall effect systems, the high-T_c superconductor, the strongly corrected electron systems, the disorder systems, the quantum magnetism, the mesoscopic systems, etc.
Selected recent publications:
1. W.M. Liu, W.B. Fan, W.M. Zheng, J.Q. Liang, and S.T. Chui,
Quantum tunneling of Bose-Einstein condesates in optical lattices under gravity,
Phys. Rev. Lett. 88, 170408 (2002).
2. W.M. Liu, B. Wu, and Q. Niu,
Nonlinear effects in interference of Bose-Einstein condesates,
Phys. Rev. Lett. 84, 2294-2297 (2000).
3. Q. Niu, X.D. Wang, L. Kleinman, W.M. Liu, D.M.C.
Nicholson, and G.M. Stocks,
Adiabatic dynamics of local spin moments in itinerant magnets,
Phys.Rev. Lett. 83, 207-210 (1999).
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