Numerical calculations presented here simulate the main results of recent experiments (N. J. Craig et al., Science 304, 565 (2004)) involving nonlocal spin control in nanostructures. Our simulations indicate that a splitting of the zero-bias-peak is not related to the RKKY interaction, as suggested by Craig et al. Its origin is associated to the fact that one of the quantum dots is side-connected in relation to the electron's path. In addition, a simple "circuit model" is introduced and shown to give a good qualitative description of the experiments. The implications of this agreement are briefly discussed.
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