Citation:
Blasi, T., Borunda, M.F., Räsänen, E. & Heller, E.J. Optimal local control of coherent dynamics in custom-made nanostructures. Physical Review B 87, 241303 (2013).
Abstract:
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 Schrödinger equation. The scheme is demonstrated for high-fidelity coherent control of electronic charge in 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 solid-state quantum computing.