954 citations · 4.5k across the 101 of their papers we have counts for
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Hydrodynamic sound and plasmons in three dimensions
Shao-Kai Jian, Sankar Das Sarma
In a recent paper by Lucas and Das Sarma [Physical Review B 97, 115449 (2018)], a solvable model of collective modes in 2D metals was considered in the hydrodynamic regime. In the…
Interaction-Driven Filling-Induced Metal-Insulator Transitions in 2D Moiré Lattices
Haining Pan, Sankar Das Sarma
Using a realistic band structure for twisted WSe materials, we develop a theory for the interaction-driven correlated insulators to conducting metals transitions through the t…
Quantum Geometry and Stability of Moiré Flatband Ferromagnetism
Fengcheng Wu, S. Das Sarma
Several moiré systems created by various twisted bilayers have manifested magnetism under flatband conditions leading to enhanced interaction effects. We theoretically study stabil…
Band topology, Hubbard model, Heisenberg model, and Dzyaloshinskii-Moriya interaction in twisted bilayer WSe
Haining Pan, Fengcheng Wu, Sankar Das Sarma
We present a theoretical study of single-particle and many-body properties of twisted bilayer WSe. For single-particle physics, we calculate the band topological phase diagram…
Landau poles in condensed matter systems
Shao-Kai Jian, Edwin Barnes, Sankar Das Sarma
The existence or not of Landau poles is one of the oldest open questions in non-asymptotic quantum field theories. We investigate the Landau pole issue in two condensed matter syst…