198 citations · 574 across the 12 of their papers we have counts for
12 papers
Effect of Inversion Asymmetry on Bilayer Graphene's Superconducting and Exciton Condensates
Xiang Hu, Enrico Rossi, Yafis Barlas
Inversion asymmetry in bilayer graphene can be tuned by the displacement field. As a result, the band dispersion in biased bilayer graphene acquires flat band regions near the Dira…
Quench dynamics in the one-dimensional mass-imbalanced ionic Hubbard model
Zhuotao Xie, Ming Zhao, Hantao Lu +4
Using the time-dependent Lanczos method, we study the non-equilibrium dynamics of the one-dimensional ionic-mass imbalanced Hubbard chain driven by a quantum quench of the on-site…
Anisotropic Andreev reflection in semi-Dirac materials
Hai Li, Xiang Hu, Gang Ouyang
In the framework of Bogoliubov-de Gennes equation, we theoretically study the Andreev reflection in normal-superconducting junctions based on semi-Dirac materials. Owing to the int…
Quantum-metric-enabled exciton condensate in double twisted bilayer graphene
Xiang Hu, Timo Hyart, Dmitry I. Pikulin +1
Flat-band systems are a promising platform for realizing exotic collective ground states with spontaneously broken symmetry because the electron-electron interactions dominate over…
Geometric and conventional contribution to superfluid weight in twisted bilayer graphene
Xiang Hu, Timo Hyart, Dmitry I. Pikulin +1
By tuning the angle between graphene layers to specific "magic angles" the lowest energy bands of twisted bilayer graphene (TBLG) can be made flat. The flat nature of the bands fav…
Second-order Dirac superconductors and magnetic field induced Majorana hinge modes
Sayed Ali Akbar Ghorashi, Xiang Hu, Taylor L. Hughes +1
We identify three-dimensional higher-order superconductors characterized by the coexistence of one-dimensional Majorana hinge states and gapless surface sates. We show how such sup…