6 papers
Domain Wall Decorations, Anomalies and Spectral Sequences in Bosonic Topological Phases
Qing-Rui Wang, Shang-Qiang Ning, Meng Cheng
In this work we investigate the decorated domain wall construction in bosonic group-cohomology symmetry-protected topological (SPT) phases and related quantum anomalies in bosonic…
Construction and classification of point group symmetry protected topological phases in 2D interacting fermionic systems
Jian-Hao Zhang, Qing-Rui Wang, Shuo Yang +2
The construction and classification of symmetry-protected topological (SPT) phases in interacting bosonic and fermionic systems have been intensively studied in the past few years.…
Single-hole wave function in two dimensions: A case study of the doped Mott insulator
Shuai Chen, Qing-Rui Wang, Yang Qi +2
We study a ground-state ansatz for the single-hole doped - model in two dimensions via a variational Monte Carlo (VMC) method. Such a single-hole wave function possesses fini…
Construction and classification of symmetry protected topological phases in interacting fermion systems
Qing-Rui Wang, Zheng-Cheng Gu
The classification and lattice model construction of symmetry protected topological (SPT) phases in interacting fermion systems are very interesting but challenging. In this paper,…
Topological Quantum Field Theory for Abelian Topological Phases and Loop Braiding Statistics in -Dimensions
Qing-Rui Wang, Meng Cheng, Chenjie Wang +1
Topological qauntum field theory(TQFT) is a very powerful theoretical tool to study topological phases and phase transitions. In D, it is well known that the Chern-Simons theo…
Anomalous symmetry protected topological states in interacting fermion systems
Qing-Rui Wang, Yang Qi, Zheng-Cheng Gu
The classification and construction of symmetry protected topological (SPT) phases have been intensively studied in interacting systems recently. To our surprise, in interacting fe…