2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17317We review our recent work addressing various theoretical issues in spin-based quantum dot quantum computation and quantum information processing. In particular, we summarize our calculation of electron exchange interaction in two-electron double quantum dots and multi-electron double dots, and discuss the physical implication of our results. We also discuss possible errors and how they can be corrected in spin-based quantum dot quantum computation. We critically assess the constraints and conditions required for building spin-based solid state quantum dot quantum computers.7 pages. Submitted to the IQC01 conference proceedingsMesoscale and Nanoscale PhysicsQuantum Physicstext