4 papers
Boundary criticality in two-dimensional interacting topological insulators
Yang Ge, Hong Yao, Shao-Kai Jian
We study the boundary criticality in 2D interacting topological insulators. Using the determinant quantum Monte Carlo method, we present a nonperturbative study of the boundary qua…
Boundary criticality in two-dimensional correlated topological superconductors
Yang Ge, Huan Jiang, Hong Yao +1
The presence of a boundary enriches the nature of quantum phase transitions. However, the boundary critical phenomena in topological superconductors remain underexplored so far. He…
Boundary criticality for the Gross-Neveu-Yukawa models
Huan Jiang, Yang Ge, Shao-Kai Jian
We study the boundary criticality for the Gross-Neveu-Yukawa (GNY) models. Employing interacting Dirac fermions on a honeycomb lattice with armchair boundaries, we use determinant…
Defect conformal field theory from Sachdev-Ye-Kitaev interactions
Yang Ge, Shao-Kai Jian
The coupling between defects and extended critical degrees of freedom gives rise to the intriguing theory known as defect conformal field theory (CFT). In this work, we introduce a…