  In this work the intersubband electronic properties of two laterally coupled
dome-shaped InAs/GaAs quantum dots were investigated. The envelope functions
and eigenenergies were calculated as function of distance between the dots. The
coupling between the dots was studied using transition lifetime between the
dots. The results showed that in close distances (smaller than 3 nm) the
quantum dots are coupled and by increasing the distance transition lifetime
fall down drastically and the dots become uncoupled.
