Phonon-induced electron relaxation in correlated quantum dots

We study the electron momentum relaxation in single and vertically coupled quantum dots due to coupling with acoustic phonons. We consider both the single-electron and the few-electron regimes, using a Full Configuration Interaction approach to account for the electron-electron repulsion. Our findings suggest that electronic correlations tend to reduce intradot and interdot transition rates. We also show that external magnetic fields acting on properly designed quantum dots may strongly suppress electron-phonon coupling