The ground state construction of bilayer graphene

Thursday, March 30, 2017 -
2:00pm to 3:30pm

We consider a model of weakly-interacting electrons in bilayer graphene. Bilayer graphene is a 2-dimensional crystal consisting of two layers of carbon atoms in a hexagonal lattice. Our main result is an expression of the free energy and two-point Schwinger function as convergent power series in the interaction strength. In this talk, I discuss the properties of the non-interacting model, and exhibit three energy regimes in which the energy bands are qualitatively different. I then sketch how this decomposition may be used to carry out the renormalization group analysis used to prove our main result.  Joint work with Alessandro Giuliani. 

Ian Jauslin
Institute for Advanced Study
Event Location: 
Jadwin Hall 111