Optimal local control of coherent dynamics in custom-made nanostructures
Blasi, T., Borunda, M. F., Räsänen, E., & Heller, E. J. (2013). Optimal local control of coherent dynamics in custom-made nanostructures. Physical Review B, 87 (24), 241303(R). doi:10.1103/PhysRevB.87.241303
Published inPhysical Review B
© 2013 American Physical Society. Published in this repository with the kind permission of the publisher.
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 Schrodinger 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.