  The aim of this work is to prove that it is possible to realise an optical
system which produces as output a light intensity that can be expressed in the
same mathematical form of the spin glass Hamiltonian. The optical system under
study is controlled through an adaptive optics device composed by millions of
switchable mirrors in an ON and OFF position. These user controlled mirrors are
playing the role of the spin states. Furthermore, such optical system can be
used to run simulations and, applying the same Metropolis Monte Carlo algorithm
used in computer simulations, extract the quantities of interest for Spin Glass
physics. The proposed system has a great advantage over existing computer-based
spin glass simulations: the simulation step has no scaling dependence on the
total number of spins $N$ and the whole simulation has a linear dependence on
$N$, due to the fact that we want to keep the number of moves per spin
constant. This should be compared to the $N^2$ dependence of a single Monte
Carlo move in computer simulation, which yields a global N3 dependence. Some
experimental problems limit such advantage, but are partially addressed at the
end of the presentation.
