From the 2 of 10 linked papers with an AI index.
10 papers
Magnetic Breakdown and Anomalous Quantum Oscillation in Rhombohedral Tetralayer Graphene
Jing-Yu Zhao, Yang-Zhi Chou, Sankar Das Sarma
The paper studies how magnetic breakdown near Van Hove singularities in electron‑doped rhombohedral tetralayer graphene leads to unusual quantum oscillation patterns, offering a pr…
Stripe-tuned superconductivity in single-flavor metals with nontrivial quantum geometry
Yi-Ting Tu, Yang-Zhi Chou, Yi Huang +1
We study how the interplay between nontrivial quantum geometry and an applied stripe potential affects superconductivity in a two-dimensional single-flavor metal. Assuming a weak c…
Symmetric localization of fractional topological insulator edges
Yang-Zhi Chou, Sankar Das Sarma
The paper develops a theory for disordered, interacting edges of a ν_tot=4/3 fractional topological insulator, identifying multiple conductance phases and showing that an interacti…
Superconductivity from phonon-mediated retardation in a single-flavor metal
Yang-Zhi Chou, Jihang Zhu, Jay D. Sau +1
We study phonon-mediated pairings in a single-flavor metal with a tunable Berry curvature. In the absence of Berry curvature, we discover an unexpected possibility: -wave superc…
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…
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…