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76 papers
Spin-charge separation and unconventional superconductivity in \textit{t}-\textit{J} model on honeycomb lattice
Jian-Jian Miao, Zheng-Yuan Yue, Hao Zhang +2
The physical nature of doped Mott-insulator has been intensively studied for more than three decades. It is well known that the single band Hubbard model or - model on the bi…
Intrinsically Interacting Higher-Order Topological Superconductors
Hao-Ran Zhang, Jian-Hao Zhang, Zheng-Cheng Gu +2
We propose a minimal interacting lattice model for two-dimensional class- higher-order topological superconductors with no free-fermion counterpart. A Lieb-Schultz-Mattis-type c…
Emergent Symmetry in Quantum Phase Transitions: From Deconfined Quantum Critical Point to Gapless Quantum Spin Liquid
Wen-Yuan Liu, Shou-Shu Gong, Wei-Qiang Chen +1
The emergence of exotic quantum phenomena in frustrated magnets is rapidly driving the development of quantum many-body physics, raising fundamental questions on the nature of quan…
Competing orders in the honeycomb lattice - model
Zheng-Tao Xu, Zheng-Cheng Gu, Shuo Yang
We study the honeycomb lattice - model using the fermionic tensor network approach. By examining the ansatz with various unit cells, we discover several different stripe stat…
Construction and classification of crystalline topological superconductor and insulators in three-dimensional interacting fermion systems
Jian-Hao Zhang, Shang-Qiang Ning, Yang Qi +1
The natural existence of crystalline symmetry in real materials manifests the importance of understanding crystalline symmetry-protected topological (SPT) phases, especially for in…
Exactly solvable lattice models for interacting electronic insulators in two dimensions
Qing-Rui Wang, Yang Qi, Chen Fang +2
In the past decade, tremendous efforts have been made towards understanding fermionic symmetry protected topological (FSPT) phases in interacting systems. Nevertheless, for systems…