137 citations · 1.3k across the 39 of their papers we have counts for
39 papers
Monte Carlo solver and renormalization of Migdal-Eliashberg spin chain
Yang-Zhi Chou, Zhentao Wang, Sankar Das Sarma
Motivated by the recently developed classical spin model for Migdal-Eliashberg theory, we develop new numerical and analytical methods based on this spin-chain representation and a…
Correlated insulator in two Coulomb-coupled quantum wires
Yang-Zhi Chou, Sankar Das Sarma
Motivated by the recently discovered incompressible insulating phase in the bilayer graphene exciton experiment [arXiv:2306.16995], we study using bosonization two Coulomb-coupled…
Scaling theory of intrinsic Kondo and Hund's rule interactions in magic-angle twisted bilayer graphene
Yang-Zhi Chou, Sankar Das Sarma
Motivated by the recent studies of intrinsic local moments and Kondo-driven phases in magic-angle twisted bilayer graphene, we investigate the renormalization of Kondo coupling ($J…
Constrained motions and slow dynamics in one-dimensional bosons with double-well dispersion
Yang-Zhi Chou, Jay D. Sau
We demonstrate slow dynamics and constrained motion of domain walls in one-dimensional (1D) interacting bosons with double-well dispersion. In the symmetry-broken regime, the domai…
Kondo lattice model in magic-angle twisted bilayer graphene
Yang-Zhi Chou, Sankar Das Sarma
We systematically study emergent Kondo lattice models from magic-angle twisted bilayer graphene using the topological heavy fermion representation. At the commensurate fillings, we…
Enhanced superconductivity through virtual tunneling in Bernal bilayer graphene coupled to WSe
Yang-Zhi Chou, Fengcheng Wu, Sankar Das Sarma
Motivated by a recent experiment [arXiv:2205.05087], we investigate a possible mechanism that enhances superconductivity in hole-doped Bernal bilayer graphene due to a proximate WS…