  Recently, the possibility of an all electrical scheme of preparation and
readout for a single spin state in a single quantum dot attached to spin biased
leads has been shown [F. Chi et al., Phys. Rev. B 81, 075310 (2010)]. However,
spin scattering mechanisms have been omitted. To remedy this lack we consider
the influence of the spin-flip scattering process on the proposed preparation
and readout scheme.
