2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/24700In bulk silicon, intervalley electronic interference has been shown to lead to strong oscillations in the exchange coupling between impurity electronic wavefunctions, posing a serious manufacturability problem for proposed quantum computers. Here we show that this problem does not arise in proposed architectures using Si/SiGe quantum dots because of the large in-plane strain in Si quantum wells together with the strong confinement potential typical of heterostructures.4 pages, 2 figures, submitted to APLMesoscale and Nanoscale PhysicsQuantum Physicstext