SciPost Submission Page
General continuum model for twisted bilayer graphene and arbitrary smooth deformations
by Leon Balents
|As Contributors:||Leon Balents|
|Submitted by:||Balents, Leon|
|Submitted to:||SciPost Physics|
|Subject area:||Condensed Matter Physics - Theory|
We present a simple derivation of a continuum Hamiltonian for bilayer graphene with an arbitrary smooth lattice deformation -- technically in a fashion parametrized by displacement fields with small gradients. We show that this subsumes the continuum model of Bistritzer and Macdonald for twisted bilayer grapheneas well as many generalizations and extensions of it. The derivation is carried out entirely in real space.