16 citations · 30 across the 6 of their papers we have counts for
6 papers
Enhanced Amplitude for Superconductivity due to Spectrum-wide Wave Function Criticality in Quasiperiodic and Power-law Random Hopping Models
Xinghai Zhang, Matthew S. Foster
We study the interplay of superconductivity and a wide spectrum of critical (multifractal) wave functions ("spectrum-wide quantum criticality," SWQC) in the one-dimensional Aubry-A…
Ultracold Quantum Gases in Optical Lattice with Topological Defects: Its Physics and Experimental Proposal
Xing-Hai Zhang, Wen-Jun Fan, Jin-Wei Shi +1
In this paper we give a proposal to realize optical lattices with manipulated dislocations and study the physics of ultracold quantum gas on a two-dimensional (2D) optical square l…
Theory of Ferrimagnetism in the Hubbard Model on Bipartite Lattices with Spectrum Symmetry
Yang Xue, Jing He, Xing-Hai Zhang +1
In this paper we developed theory of the ferrimagnetism in the Hubbard model on bipartite lattices with spectrum symmetry. We then study the defect-induced ferrimagnetic orders in…
Emergent Supersymmetric Many-Body Systems in Doped Z2 Topological Spin Liquid of the Toric-Code Model
Jing He, Jing Yu, Xing-Hai Zhang +1
In this paper, we studied the doped Z2 topological spin liquid of the toric-code model. We found that the doped holes become supersymmetric particles. The ground state of the doped…
Majorana Edge States for Z2 Topological Orders of the Wen-plaquette Model and the Toric-code Model
Jing Yu, Xing-Hai Zhang, Su-Peng Kou
In this paper we study the symmetry protected Majorana edge states for the Z2 topological order of the Wen-plaquette model and the toric-code model and calculate the dispersion of…
Mott Insulator-Superfluid Transition in a Generalized Bose-Hubbard Model with Topologically Non-trivial Flat-Band
Xing-Hai Zhang, Su-Peng Kou
In this paper, we studied a generalized Bose-Hubbard model on a checkerboard lattice with topologically nontrivial flat-band. We used mean-field method to decouple the model Hamilt…