Speaker
Sean Hartnoll
Description
I will explain how the analyticity and boundedness properties underpinning the S-matrix bootstrap can be adapted to constrain the dynamics of quantum mechanical lattice models. The basic quantity will be the retarded Green’s function, for which we obtain strong analyticity and boundedness properties using the Lieb-Robinson bound, a fundamental result for local lattice dynamics that I will review. I will explain how these properties (bounds and analyticity) can be used to place constraints on transport coefficients and on non-Fermi liquid coupling constants.