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Topological depletions and sub-leading scalings across topological phase transitions
Fadi Sun, Jinwu Ye
It remains an open problem if there are universal scaling functions across a topological quantum phase transition (TPT) without an order parameter, but with extended Fermi surfaces…
High Chern number topological superfluids and new class of topological phase transitions of Rashba spin-orbit coupled fermions on a lattice
Yu Yi-Xiang, Fadi Sun, Jinwu Ye +1
Searching for the first topological superfluid (TSF) remains a primary goal of modern science. Here we study the system of attractively interacting fermions hopping in a square lat…
Two classes of organization principle: quantum/topological phase transitions meet complete/in-complete devil staircases and their experimental realizations
Fadi Sun, Jinwu Ye
There exists many quantum or topological phases in Nature. One well known organization principle is through various quantum or topological phases transitions between or among these…
Classification of magnons in Rotated Ferromagnetic Heisenberg model and their competing responses in transverse fields
Fadi Sun, Jinwu Ye, Wu-Ming Liu
Competing orders is a general concept to describe various quantum phases and transitions in various materials. One efficient way to investigate competing orders is to first classif…
Hubbard model with Rashba or Dresselhaus spin-orbit coupling and Rotated Anti-ferromagnetic Heisenberg Model
Fadi Sun, Jinwu Ye, Wu-Ming Liu
In this work, we investigate the possible dramatic effects of Rashba or Dresselhaus spin-orbit coupling (SOC) on fermionic Hubbard model in a 2d square lattice. In the strong coupl…