159 citations · 1.1k across the 31 of their papers we have counts for
4 papers · 1 filter
Exact Results on Itinerant Ferromagnetism in Multi-orbital Systems on Square and Cubic Lattices
Yi Li, Elliott H. Lieb, Congjun Wu
We study itinerant ferromagnetism in multi-orbital Hubbard models in certain two-dimensional square and three-dimensional cubic lattices. In the strong coupling limit where doubly…
Competing orders in the 2D half-filled SU(2N) Hubbard model through the pinning field quantum Monte-Carlo simulations
Da Wang, Yi Li, Zi Cai +3
We non-perturbatively investigate the ground state magnetic properties of the 2D half-filled SU() Hubbard model in the square lattice by using the projector determinant quantum…
Spontaneous time-reversal symmetry breaking in the boundary Majorana flat bands
Yi Li, Da Wang, Congjun Wu
We study the boundary Majorana modes for the single component p-wave weak topological superconductors or superfluids, which form zero energy flat bands protected by time-reversal s…
Unconventional states of bosons with synthetic spin-orbit coupling
Xiangfa Zhou, Yi Li, Zi Cai +1
Spin-orbit coupling with bosons gives rise to novel properties that are absent in usual bosonic systems. Under very general conditions, the conventional ground state wavefunctions…