The Renewed Role of Sweep Functions in Noisy Shortcuts to Adiabaticity

Abstract

We study the robustness of different sweep protocols for accelerated adiabaticity following in the presence of static errors and of dissipative and dephasing phenomena. While in the noise-free case, counterdiabatic driving is, by definition, insensitive to the form of the original sweep function, this property may be lost when the quantum system is open. We indeed observe that, according to the decay and dephasing channels investigated here, the performance of the system becomes highly dependent on the sweep function. Our findings are relevant for the experimental implementation of robust shortcuts-to-adiabaticity techniques for the control of quantum systems.

Deep learning optimal quantum annealing schedules for random Ising models

“…The adiabatic search algorithm is to date, one of the very few examples in which a measurable (quadratic) quantum speedup has been shown in adiabatic quantum computation. Since then, this approach has been used several times in the literature for the optimal control of quantum annealing [75][76][77].…”