Prof. Dr. Xiong-Jun Liu 刘雄军


Contact Info

Office:Physics Building W535, 物理楼西535


Personal Homepage:










Texas A&M University



Theoretical Physics

S. S. Chern Institute of Mathematics, Nankai University




Nankai University


Professional Appointments





IAS Postdoctoral Fellow

Institute for Advance Study at HKUST

and MIT


Postdoctoral Research Associate

Joint Quantum Institute and

Condensed Matter Theory Center,

University of Maryland


Research Fellow (B)

National University of Singapore


Research Assistant

National University of Singapore


Research Interests

1. Condensed Matter Theory:  topological phases of quantum matter (currently focused on topological superconductors and Majorana fermions), semiconductor spintronics.

2. Theoretical Cold Atoms: simulation of exotic topological states, synthetic gauge fields and spin-orbit coupling effects, and many-body physics.


Honors and Awards


National One-Thousand Youth-Talent Program of China


George Bush Presidential Library Fund, Texas A&M University, USA


Selected Publications

The full publication list can be found at:

14. H. Wang, H. Wang, H. Liu, H. Lu, W. Yang, S. Jia, X. -J. Liu*, X. C. Xie, J. Wei*, and J. Wang*, 'Observation of superconductivity induced by a point contact on 3D Dirac semimetal Cd3As2 crystals'. Nature Mater. (2015).

13. J. -S. Pan, X. -J. Liu*, W. Zhang*, W. Yi*, and G. -C. Guo, “Topological Superradiant States in a Degenerate Fermi Gas.” Phys. Rev. Lett.115, 045303 (2015).

12. J. Wu, J. Liu, and X. -J. Liu*,“Topological Spin Texture in a Quantum Anomalous Hall Insulator.” Phys. Rev. Lett.113,136403 (2014).

11. X. -J. Liu,J. J. He, and K. T. Law, “Demonstrating Lattice Symmetry Protection in Topological Crystalline Superconductors.” Phys. Rev. B 90, 235141 (2014).

10. X. -J. Liu, Chris L. M. Wong, and K. T. Law, “Non-Abelian Majorana Doublets in Time-Reversal-Invariant-Topological Superconductor.” Phys. Rev. X 4, 021018 (2014).

9. X. -J. Liu, K. T. Law, and T. K. Ng, “Realization of 2D Spin-Orbit Interaction and Exotic Topological Orders in Cold Atoms.” Phys. Rev. Lett.112, 086401 (2014).

8. J. J. He, J. Wu, T. P. Choy, X. -J. Liu, Y. Tanaka, and K. T. Law, “Correlated Spin Currents Generated by Resonant Crossed Andreev Reflections in Topological Superconductors.” Nature Comm., 5, 3232 (2014).

7. X. -J. Liu, K. T. Law, T. K. Ng, and Patrick A. Lee, “Detecting Topological Phases in Cold Atoms .” Phys. Rev. Lett. 111, 120402 (2013).

7. X. -J. Liu, Z. -X. Liu, and M. Cheng, “Manipulating Topological Edge Spins in a One-Dimensional Optical Lattice.” Phys. Rev. Lett. 110, 076401 (2013).

6. X. -J. Liu and Alejandro M. Lobos, “Manipulating Majorana Fermions in Quantum Nanowires with Broken Inversion Symmetry.” Phys. Rev. B87, 060504 (Rapid Comm.) (2013). 

5. X. -J. Liu,“Andreev Bound states in One-Dimensional Topological Superconductor.” Phys. Rev. Lett. 109, 106404 (2012). 

4. X. -J. Liu, X. Liu, and J. Sinova, “Scaling of the Anomalous Hall Effect in the Insulating Regime.”Phys. Rev. B 84, 165304 (2011); Editor’s suggestions

3. X. -J.Liu, X.Liu, Congjun Wu,and J.Sinova, “Quantum Anomalous Hall Effect in Cold Atoms Trapped in a Square Lattice.” Phys. Rev. A81, 033622 (2010).

2. X. -J.Liu, M. F. Borunda, X.Liu, and J.Sinova, “Effect of Induced Spin-Orbit Coupling for Atoms via Laser Fields.” Phys. Rev. Lett. 102,046402 (2009).

1. X. -J.Liu, X. Liu, L. C. Kwek,and C. H. Oh, “Optically Induced Spin-Hall Effect in Atoms.” Phys. Rev. Lett. 98, 026602 (2007).


Open Positions

We plan to recruit 1-2 graduate students per year. Senior undergraduate students are also welcome to participate in research.

1-2 Postdoctoral positions are available.