175 citations · 468 across the 12 of their papers we have counts for
4 papers · 1 filter
Pressure-Induced Metal-Insulator Transition in Twisted Bi-layer Graphene
Bikash Padhi, Philip Phillips
Recent experiments [arXiv: 1808.07865] on twisted bilayer graphene (TBLG) show that under hydrostatic pressure, an insulating state at quarter-filling of the moiré superlattice (i.…
Conjecture on the Butterfly Velocity across a Quantum Phase Transition
Matteo Baggioli, Bikash Padhi, Philip W. Phillips +1
We study an anisotropic holographic bottom-up model displaying a quantum phase transition (QPT) between a topologically trivial insulator and a non-trivial Weyl semimetal phase. We…
Doped Twisted Bilayer Graphene near Magic Angles: Proximity to Wigner Crystallization not Mott Insulation
Bikash Padhi, Chandan Setty, Philip W. Phillips
We devise a model to explain why twisted bi-layer graphene (TBLG) exhibits insulating behavior when charges occupy a unit moiré cell, a feature attributed to Mottness, but…
Inequivalence of the zero-momentum Limits of Transverse and Longitudinal Dielectric Response in the Cuprates
Chandan Setty, Bikash Padhi, Kridsanaphong Limtragool +4
We address the question of the mismatch between the zero momentum limits of the transverse and longitudinal dielectric functions for a fixed direction of the driving field observed…