(2, 2) superconformal bootstrap in two dimensions
Abstract We find a simple relation between two-dimensional BPS N = 2 $$ mathcal{N}=2 $$ superconformal blocks and bosonic Virasoro conformal blocks, which allows us to analyze the crossing equations for BPS 4-point functions in unitary (2, 2) superconformal theories numerically with semidefinite programming.We constrain gaps in Extension Cords the