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Assistant Professor Chang,Po-Yao


Assistant Professor

Po-Yao Chang

Personal Webpage





Office TEL 03-5742957

Fax:  03-5723052


Condensed Matter Theory Group





  • University of Illinois at Urbana-Champaign, Ph.D. in Physics(2009/09~2015/07)
  • National Tsing Hua University, M.S. in Physics (2006/09~2008/07)
  • National Tsing Hua University, B.S. in Science (2002/09~2006/07)

Professional Experience

Current PositionAssistant Professor, Department of Physics, National Tsing Hua University (2019/02~ )


  • Visiting Scientist, Max Planck Institute for the Physics of Complex systems (2018/07~2019/01)
  • Postdoctoral Fellow, Rutgers University (2015/08~2018/07)

Research Fields

  • Topological Materials
  • Strongly correlated systems
  • Non-equilibrium quantum systems
  • Quantum entanglement



Research Interests and achievement

Updated on February 22, 2019


My main research focus is bridging different subfields in physics, including topological phenomena, quantum entanglement, strong correlations, and non-equilibrium physics. Previously, we have found a new type of strongly correlated topological insulators in heavy fermion systems. We also develop a new method to characterize the topological properties of non-equilibrium states. The topological properties are related to the quantum entanglement of these non-equilibrium state and open a possibility of engineering topological phases of matter. In addition, we are developing new concepts on understating the quantum chaos and many-body localization from the entanglement aspect.




Selected Publications

1.      Po-Yao Chang, Topology and entanglement in quench dynamics, arXiv: 1804.10625,  Phys. Rev. B 97, 224304 (2018).

2.      Yuanping Chen, Yan Gao, Yuee Xie, Po-Yao Chang, Shengbai Zhang, David Vanderbilt, Nexus network in Carbon honeycombs, Phys. Rev. Materials. 2, 044205 (2018).

3.      Po-Yao Chang, Piers Coleman, Parity-violating hybridization in heavy Weyl semimetals, arXiv:1710.09928, Phys. Rev. B 97, 155134, (2018).

4.     Yan Gao, Yuanping Chen, Yuee Xie, Po-Yao Chang, Marvin L. Cohen, Shengbai Zhang, A Class of topological nodal rings and its realization in carbon networks, Phys. Rev. B 96, 121108 (R), (2018).

5.      Po-Yao Chang, Chuck-Hou Yee, Weyl-link semimetals, Phys. Rev. B 96, 081114 (R), (2017).

6.      Onur Erten, Po-Yao Chang, Piers Coleman, Alexei Tsvelik, Skyrme insulators: insulators at the brink of superconductivity, Phys. Rev. Lett. 119, 057603 (2017).

7.     Po-Yao Chang, Onur Erten, Piers Coleman, Mobius Kondo Insulators,  Nature Physics 13, 794-798 (2017).

8.      Xueda Wen, Po-Yao Chang, Shinsei Ryu, Topological entanglement negativity in Chern-Simons theories, J. High Energy. Phys. 09,012 (2016).

9.      Po-Yao Chang, Xueda Wen, Entanglement negativity in free-fermion systems: an overlap matrix approach,  Phys. Rev. B 93, 195140 (2016).

10.   Xueda Wen, Po-Yao Chang, Shinsei Ryu, Entanglement negativity after a local quantum quench in conformal field theories, Phys. Rev. B 92, 075109 (2015).

11.   Po-Yao Chang, Shunji Matsuura, Andreas P. Schnyder and Shinsei Ryu, Majorana vortex- bound states in three-dimensional nodal noncentrosymmetric superconductors, Phys. Rev. B 90, 174504 (2014).

12.   Po-Yao Chang, Christopher Mudry and Shinsei Ryu, Symmetry-protected entangling boundary zero modes in crystalline topological insulators, J. Stat. Mech. Theor. Exp., P09014 (2014) (Special Issue: Quantum Entanglement in Condensed Matter Physics)

13.   Shunji Matsuura, Po-Yao Chang, Andreas P. Schnyder and Shinsei Ryu, Protected boundary states in gapless topological phases, New J. Phys. 15, 065001 (2013).




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