148 citations · 857 across the 24 of their papers we have counts for
24 papers
Flux-driven quantum spin liquids in kagome optical lattices
Hoi-Yin Hui, Mengsu Chen, Sumanta Tewari +1
Quantum spin liquids (QSLs) define an exotic class of quantum ground states where spins are disordered down to zero temperature. We propose routes to QSLs in kagome optical lattice…
Chiral topological phases in optical lattices without synthetic fields
Hoi-Yin Hui, Mengsu Chen, S. Tewari +1
Synthetic fields applied to ultracold quantum gases can realize topological phases that transcend conventional Bose and Fermi-liquid paradigms. Raman laser beams in particular are…
Correlated Spin-Flip Tunneling in a Fermi Lattice Gas
Wenchao Xu, William Morong, Hoi-Yun Hui +2
We report the realization of correlated, density-dependent tunneling for fermionic 40K atoms trapped in an optical lattice. By appropriately tuning the frequency difference between…
Quantum anomalous Hall state from spatially decaying interactions on the decorated honeycomb lattice
Mengsu Chen, Hoi-Yin Hui, Sumanta Tewari +1
Topological phases typically encode topology at the level of the single particle band structure. But a remarkable class of models shows that quantum anomalous Hall effects can be d…
-periodic dissipationless ac Josephson effect on a quantum spin-Hall edge via a Quantum magnetic impurity
Hoi-Yin Hui, Jay D. Sau
Time-reversal invariance places strong constraints on the properties of the quantum spin Hall edge. One such restriction is the inevitability of dissipation in a Josephson junction…
Superfluidity in the absence of kinetics in spin-orbit-coupled optical lattices
Hoi-Yin Hui, Yongping Zhang, Chuanwei Zhang +1
At low temperatures bosons typically condense to minimize their single-particle kinetic energy while interactions stabilize superfluidity. Optical lattices with artificial spin-orb…