  Quantum simulation of many-body systems are one of the most interesting tasks
of quantum technology. Among them is the preparation of a many-body system in
its ground state when the vanishing energy gap makes the cooling mechanisms
ineffective. Adiabatic theorem, as an alternative to cooling, can be exploited
for driving the many-body system to its ground state. In this paper, we study
two most common disorders in quantum dot arrays, namely exchange coupling
fluctuations and hyperfine interaction, in adiabatically preparation of ground
state in such systems. We show that the adiabatic ground state preparation is
highly robust against those disorder effects making it good analog simulator.
Moreover, we also study the adiabatic classical information transfer, using
singlet-triplet states, across a spin chain. In contrast to ground state
preparation the transfer mechanism is highly affected by disorder and in
particular, the hyperfine interaction is very destructive for the performance.
This suggests that for communication tasks across such arrays adiabatic
evolution is not as effective and quantum quenches could be preferable.
