Computer-automated tuning of semiconductor double quantum dots into the   single-electron regime
  We report the computer-automated tuning of gate-defined semiconductor double quantum dots in GaAs heterostructures. We benchmark the algorithm by creating three double quantum dots inside a linear array of four quantum dots. The algorithm sets the correct gate voltages for all the gates to tune the double quantum dots into the single-electron regime. The algorithm only requires (1) prior knowledge of the gate design and (2) the pinch-off value of the single gate $T$ that is shared by all the quantum dots. This work significantly alleviates the user effort required to tune multiple quantum dot devices. 
T.A. Baart, P.T. Eendebak, C. Reichl, W. Wegscheider, L.M.K.   Vandersypen
cond-mat.mes-hall