2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/18024We have studied theoretically the basic operation of a quantum feedback loop designed to maintain the desired phase of quantum coherent oscillations in a two-level system. Such feedback can suppress the dephasing of oscillations due to interaction with environment. Prospective experiments can be realized using metallic single-electron devices or GaAs technology.4 pages, 4 figuresMesoscale and Nanoscale PhysicsQuantum Physicstext