  From available data, we show strong positive spatial correlations in the
qubits of a D-Wave 2000Q quantum annealing chip that are connected to qubits
outside their own unit cell. Then, by simulating the dynamics of three
different spin networks and two different initial conditions, we then show that
correlation between nodes is affected by a number of factors. The different
connectivity of qubits within the network means that information transfer is
not straightforward even when all the qubit-qubit couplings have equal
weighting. Connected nodes behave even more dissimilarly when the couplings'
strength is scaled according to the physical length of the connections (here to
simulate dipole-dipole interactions). This highlights the importance of
understanding the architectural features and potentially unprogrammed
interactions/connections that can divert the performance of a quantum system
away from the idealised model of identical qubits and couplings across the
chip.
