Optimal local control of entangled states in semiconductor quantum wells

We apply quantum optimal control theory to establish a local voltage-control scheme that operates in conjunction with the numerically exact solution of the time-dependent Schr\"{o}dinger equation. The scheme is demonstrated for high-fidelity coherent control of electronic charge in many-particle states of semiconductor double quantum dots. We find tailored gate voltages in the viable gigahertz regime that drive the system to a desired charge configuration with $>$99\% yield. The results could be immediately verified in experiments and would play an important role in applications towards semiconducting quantum information.