2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97083We present a full fledged quantum mechanical treatment of the interplay between the charge and the spin zero-mode interactions in quantum dots. Quantum fluctuations of the spin-mode suppress the Coulomb blockade and give rise to non-monotonic behavior near this point. They also greatly enhance the dynamic spin susceptibility. Transverse fluctuations become important as one approaches the Stoner instability. The non-perturbative effects of zero-mode interaction are described in terms of charge (U(1)) and spin (SU(2)) gauge bosons.4.5 pages, 2 figuresMesoscale and Nanoscale PhysicsStrongly Correlated Electronstext