Our Hartree-Fock calculations predicted that the correlated insulator in twisted bilayer graphene is a Kekulé spiral. This has recently been confirmed in experiment.
Using exact diagonalization, we have shown that the composite fermions in quantum Hall bilayers effectively undergo a BEC-BCS crossover as the interlayer separation is tuned.
Strontium Ruthenate is widely believed to be a two-component superconductor, however measurements of the heat capacity show only a single transition. We discuss possible reasons that the second heat capacity jump may be unobservably small.
Electrons in very clean metals can behave similarly to molecules in a fluid, meaning that most of the collisions are momentum-conserving collisions between the particles themselves. We have used the quantum Boltzmann equation to understand this regime in Bernal bilayer graphene.
Kagome metals are thought to be nematic at low enough temperatures. However, recent experiments suggest that coupling to the substrate may be the cause of this apparent nematicity. We used a Landau analysis to understand how an out-of-plane magnetic field can cause anisotropic transport to re-emerge.