3 papers
math-ph2025
Large Scale Response of Gapless and Quasi- Systems
Marcello Porta, Harman Preet Singh
We consider the transport properties of non-interacting, gapless one-dimensional quantum systems and of the edge modes of two-dimensional topological insulators, in the presence of…
math-ph2025
Large scale dynamical response of interacting Fermi systems
Marcello Porta, Giuseppe Scola, Harman Preet Singh
We consider the dynamics of a class of weakly interacting, gapless fermionic systems, in presence of small external perturbations slowly varying in space and in time. We consi…
math-ph2024
Edge transport in Haldane-like models with quasi-periodic disorder
Fabrizio Caragiulo, Vieri Mastropietro, Marcello Porta
We consider Haldane-like topological insulators on the cylinder, in the presence of weak quasi-periodic disorder. We prove that, at large distances, the boundary correlations…