2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/228372We demonstrate that an optically driven spin of a carrier in a quantum dot undergoes indirect dephasing via conditional optically induced charge evolution even in the absence of any direct interaction between the spin and its environment. A generic model for the indirect dephasing with a three-component system with spin, charge, and reservoir is proposed. This indirect decoherence channel is studied for the optical spin manipulation in a quantum dot with a microscopic description of the charge-phonon interaction taking into account its non-Markovian nature.Final extended version, 6 pages, 2 new figuresMesoscale and Nanoscale PhysicsQuantum Physicstext