Han Ma
Research Interests
My research interest lies in the study of quantum phases and phase transitions. I studied exotic phases, such as topological ordered states and fracton phase, have non-trivial entanglement structure resulting in interesting behaviours, such as ground state degeneracy and anyonic statistics of excitations. I am also interested in continuous phase transitions which can be described by conformal field theories. I use various approaches, including duality mappings and renormalization group, to study them. I also study quantum RG which is a way to realize holographic mapping.
Positions Held
- 2014-2019 Department of Physics, University of Colorado Boulder, PhD
Recent Publications
- Exact effective action for the O(N) vector model in the large N limit, Han Ma and Sung-Sik Lee, arXiv: 2107.05654
- Constraints on beta functions, Han Ma and Sung-Sik Lee, arXiv: 2009.11880
Seminars
- Nonperturbative RG flow and exact effective action of O(N) vector model, Cornell University, USA
- Constraints on beta functions in field theories, Harvard/MIT CMT seminar
- Tensor gauge theory at Lifshitz transition, Banff, Canada
- Mechanisms for fractons, Sun Yat-sen University
- Constraints on beta functions in field theories, Fields and Strings Group meeting
- PIRSA:19040096, Shadow of complex fixed point: Approxmiate conformality of Q>4 Potts model, 2019-04-22, Quantum Matter: Emergence & Entanglement 3
- PIRSA:18100060, Mechanisms of Fracton Phases, 2018-10-09, Quantum Matter