2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/162459We present a non-perturbative expression for the scattering matrix of $N$ particles interacting inside a quantum dot. Characterizing the dot by its resonances, we find a compact form for the scattering matrix in a real-time representation. We study the transmission probabilities and interaction-induced orbital entanglement of two electrons incident on the dot in a spin-singlet state.4 pagesMesoscale and Nanoscale PhysicsStrongly Correlated Electronstext