content_image/367136.jpg
<img src='content_image/367136.jpg'>

time and of the left Fermi energy in fig. 6 for fixed values of tunneling Γ = 0 . 01, ϵ$_{F}$$_{R}$ = 0 , and for different values of coupling strength η = 0 . 02 , η = 0 . 08. We found damped oscillations for short times and constant energy for long times. This constant average energy increases with increasing Fermi level. Why have we found this particular type of structure? We know that the nanomechanical oscillator potential seen by the electrons on the dot is independent of time when the oscillator is in any of its pure eigenstates. Otherwise, when the oscillator is not in a pure state, the potential seen by the electrons is time dependent. In the former case, the electrons are scattered elastically by the time independent potential and in the 

