2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/109570We study spin-orbit mediated relaxation and dephasing of electron spins in quantum dots. We show that higher order contributions provide a relaxation mechanism that dominates for low magnetic fields and is of geometrical origin. In the low-field limit relaxation is dominated by coupling to electron-hole excitations and possibly $1/f$ noise rather than phonons.Replaced with final published versionMesoscale and Nanoscale Physicstext