  We extend optical spin noise spectroscopy on single (InGa)As quantum dots to
high magnetic fields at which the splitting between the two optical active
Zeeman branches of the positively charged quantum dot trion transition is
significantly larger than the homogeneous line width. Under such conditions,
the typical theoretical approximations concerning the decoupling of spin and
charge dynamics are in general not valid anymore and the Kerr fluctuations show
significantly richer detuning-dependent features in the spectral region between
the two Zeeman branches. A comparison of the experimental data with an extended
theory suggests that the typical Auger-recombination can be neglected at high
magnetic fields in favour of a probe-laser induced photoeffect that shuffles
not only the resident hole out of the quantum dot but also activates
acceptor-bound holes which recharge the empty quantum dot.
