Research Fields

Exploring novel topological quantum states and achieving control over the transport properties of quantum materials represents a cutting-edge 

interdisciplinary field at the intersection of condensed matter physics, optics, and materials science. This research direction not only enriches 

condensed matter physics with profound theoretical insights and new research paradigms but also holds significant importance and broad 

application prospects in quantum computing, spintronics, and novel functional quantum materials.

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].