5 papers
Spin ladder quantum simulators from spin-orbit-coupled quantum dot spin qubits
Yang-Zhi Chou, Sankar Das Sarma
Motivated by the recent Ge hole spin qubit experiments, we construct and study a two-leg spin ladder from a quantum dot array with spin-orbit couplings (SOCs), aiming to uncover th…
Perturbative renormalization group approach to magic-angle twisted bilayer graphene using topological heavy fermion model
Yi Huang, Yang-Zhi Chou, Sankar Das Sarma
We develop a perturbative renormalization group (RG) theory for the topological heavy fermion (THF) model, describing magic-angle twisted bilayer graphene (MATBG) as an emergent An…
Apparent inconsistency between Streda formula and Hall conductivity in reentrant integer quantum anomalous Hall effect in twisted MoTe
Yi Huang, Seth Musser, Jihang Zhu +2
Recent experiments in twisted bilayer MoTe (tMoTe) have uncovered a rich landscape of correlated phases. In this work, we investigate the reentrant integer quantum anomalou…
In-plane magnetic field-induced orbital FFLO superconductivity in twisted WSe homobilayers
Jihang Zhu, Yang-Zhi Chou, Yi Huang +1
We theoretically predict the in-plane magnetic field-induced orbital Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting states in twisted WSe homobilayers (tWSe), focu…
Intravalley spin-polarized superconductivity in rhombohedral tetralayer graphene
Yang-Zhi Chou, Jihang Zhu, Sankar Das Sarma
We study the intravalley spin-polarized superconductivity in rhombohedral tetralayer graphene, which has been discovered experimentally in Han arXiv:2408.15233. We constr…