Home People Teaching Staff GU Zhengcheng

Education:

• Ph.D., Physics, Center for Advanced Study, Tsinghua University, 2003-2007
• Bachelor, Fundamental Science (Mathematics and Physics), Tsinghua University, 1999-2003

Position:

• Mar 2016-now, Associate Professor, Department of Physics, The Chinese University of Hong Kong
• 2015-2020, Adjunct Professor, University of Waterloo
• 2012-2016, Director's Fellow, Perimeter Institute (IQIM Fellow 2012-2013, Caltech)
• 2009-2012, Associate Specialist, Kavli Institute for Theoretical Physics, UCSB
• 2007-2009, Postdoctoral Fellow, MIT

Research Interest:

• Entanglement renormalization and deep learning.
• Classification of topological phases in interacting bosonic and fermionic systems.
• Tensor network simulation for two dimensional strongly correlated systems, e.g., frustrated magnets and Hubbard model.
• Unification of mass mixing phenomena in quark and lepton sectors. Predictions on leptonic CP violation angle and absolute neutrino mass.
• Topological aspects of fundamental particles and unification of three generations.
• Super topological quantum field theory and quantum gravity.

Honours and Awards:

• CUHK Research Excellence Award 2021-22
• Outstanding Referee 2018, The American Physical Society
• RGC Early Career Award 2016/17, University Grants Committee

Selected Recent Publications:

• Z.-C. Gu and Xiao-Gang Wen, "Symmetry-protected topological orders for interacting fermions - fermionic topological non-linear sigma-models and a group super-cohomology theory", Phys. Rev. B 90, 115141 (2014).
• Xie Chen, Z.-C. Gu, Zheng-Xin Liu, Xiao-Gang Wen, "Symmetry protected topological orders in interacting bosonic systems", Science 338, 1604 (2012).
• Michael Levin and Z.-C. Gu, "Braiding statistic approach to symmetry-protected topological order", Phys. Rev. B 86, 115109 (2012).
• K. Sun, Z.-C. Gu, H. Katsura and S. Das Sarma, "Nearly flat bands with nontrivial topology", Phys. Rev. Lett. 106, 236803 (2011).
• Xie Chen, Z.-C. Gu and Xiao-Gang Wen, "Classification of gapped symmetric phases in 1D spin systems", Phys. Rev. B 83, 035107 (2011).