Theory of phonon-induced spin relaxation in laterally coupled quantum dots.
Phonon-induced spin relaxation in coupled lateral quantum dots in the presence of spin-orbit coupling is calculated. The calculation for single dots is consistent with experiment. Spin relaxation in double dots at useful interdot couplings is dominated by spin-hot spots that are strongly anisotropic. Spin-hot spots are ineffective for a diagonal crystallographic orientation of the dots with a transverse in-plane field. This geometry is proposed for spin-based quantum information processing.
Stano
Peter
P
Institute for Theoretical Physics, University of Regensburg, 93040 Regensburg, Germany.
Fabian
Jaroslav
J