On the adiabatic quantum dynamics of fabricated Ising chains

Physical implementations of quantum computation must be scrutinized about their reliability under real conditions, in order to be considered as viable candidates. Among the proposed models, those based on adiabatic quantum dynamics have shown great potential for solving specific tasks and have already been successfully implemented using superconducting devices. In this context, we address the issue of how the fabrication variations are expected to affect on average the computation results, when only dynamical effects occur. By simulating the dynamics of small-scale systems, it is found a considerable robustness for the computation when analyzing results obtained from ensembles of such machines. In addition, it is also addressed whether conditions for adiabaticity could be taken as quantitative measures of it. From the analysis of four known conditions, it is obtained that none could have such an use.