Kondo effect in a one-electron double quantum dot: Oscillations of the   Kondo current in a weak magnetic field
  We present transport measurements of the Kondo effect in a double quantum dot charged with only one or two electrons, respectively. For the one electron case we observe a surprising quasi-periodic oscillation of the Kondo conductance as a function of a small perpendicular magnetic field |B| \lesssim 50mT. We discuss possible explanations of this effect and interpret it by means of a fine tuning of the energy mismatch of the single dot levels of the two quantum dots. The observed degree of control implies important consequences for applications in quantum information processing. 
D. M. Schr\"oer, A. K. H\"uttel, K. Eberl, S. Ludwig, M. N. Kiselev,   B. L. Altshuler