PEOPLE
GU Zhengcheng 顧正澄
GU Zhengcheng / Associate Professor
PHONE: (852) 3943 6100
EMAIL: zcgu@phy.cuhk.edu.hk
OFFICE: Room G8, G/F, Science Centre North Block
ORCID: 0000-0002-7269-6401
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 Interests
- 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
- RGC Research Fellow 2023/24
- 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).