Research Fields: 

The research group focuses on topological states and their quantum transport properties, with research interests centered on, but not limited to, the following areas:

#1. Novel topological states and their quantum transport properties (including topological insulators, topological superconductors and quantum computations, higher-order topological states, novel quantum magnetism, quantum geometric effects, mesoscopic quantum transport and control, and the superconducting Josephson effect etc.);

#2. Disorder effects and quantum critical phenomena (localization and the Anderson transition, real-space topological indices, disorder-driven topological phase transitions, etc.);

#3. Open quantum systems (non-Hermitian topological states, non-Hermitian skin effects, mesoscopic transport and superconducting transport in open systems, etc.);

#4. Potential device applications based on quantum materials (spintronics, low-power electronic devices, etc.).

PostDoc Positions:

Our research group is seeking to hire 1–2 postdoctoral researchers. Candidates should hold a Ph.D. in theoretical condensed matter physics or be about to graduate. A record of first-author publications in leading physics journals (e.g., PRB/PRL) is prefered. Candidates should be familiar with the research areas listed above or related fields. 

We will offer competitive salary, high-quality research enviroment, and great living conditions and stipends. 

Please feel free to contact me for further information.

Representative Publications (*Corresponding author) 

1. Chang-An Li*, B. Fu, H. Guo, B. Trauzettel, S. Zhang*, Marginal Metals and Kosterlitz-Thouless Type Phase Transition in Disordered Altermagnets, Phys. Rev. Lett. 136, 066303 (2026).

2. Chang-An Li, B. Trauzettel, T. Neupert, S. Zhang,  Enhancement of Second-Order Non-Hermitian Skin Effect by Magnetic Fields, Phys. Rev. Lett. 131, 116601 (2023) [Editors’ suggestion].

3. Chang-An Li*, S.-B. Zhang*, J. Li, and B. Trauzettel, Higher-Order Fabry-Pérot Interferometer from Topological Hinge States, Phys. Rev. Lett. 127, 026803 (2021)[On the Cover].

4. Chang-An Li, B. Fu, Z. Hu, J. Li*, and S.-Q. Shen*,Topological Phase Transitions in Disordered Electric Quadrupole Insulators, Phys. Rev. Lett. 125, 166801 (2020) [Editors’ suggestion].

5. Chang-An Li and B. Trauzettel,  Exceptional Andreev spectrum and supercurrent in p-wave non-Hermitian Josephson junctions, Phys. Rev. B 112, 184504 (2025). 

6. Chang-An Li*, B. Fu*, J. Li, B. Trauzettel*,  Random-flux-induced transition sequence between weak and strong topological phases with anisotropic localization properties, Phys. Rev. B 111, 214207 (2025).

7. Chang-An Li*, J. Sun, S.-B. Zhang, H. Guo, and B. Trauzettel, Klein-bottle quadrupole insulators and Dirac semimetals, Phys. Rev. B 108, 235412 (2023).

8. J. Sun, Chang-An Li*, S. Feng, Huaiming Guo* ,  Hybrid higher-order skin-topological effect in hyperbolic lattices, Phys. Rev. B 108, 075122 (2023) [Editors’ suggestion].
   

9. Chang-An Li*, S.-B. Zhang*, J. Budich, and B. Trauzettel,  Transition from metal to higher-order topological insulator driven by random flux, Phys. Rev. B 106 (8), L081410 (2022) [Letter, Editors’ suggestion].

10. Chang-An Li*,  S.-J. Choi, S.-B. Zhang, and B. Trauzettel, Dirac states in an inclined two-dimensional Su-Schrieffer-Heeger model, Phys. Rev. Research 4, 023193 (2022).

11. Chang-An Li*, Shushan Wu, Topological states in generalized electric quadrupole insulators, Phys. Rev. B 101, 195309(2020).

12. Chang-An Li, Jian Li*, and Shun-Qing Shen* , Majorana-Josephson interferometer, Phys. Rev. B 99, 100504 (R) (2019) [Rapid Communication].