Lianao Wu: One component quantum dynamics and control

Lianao Wu, University of the Basque Country

Universidad del País Vasco / Euskal Herriko Unibertsitatea

We use a Feshbach projection-operator partitioning technique (PQ partitioning) to derive a closed one- component integro-differential equation. The resultant equation properly traces the footprint of the target state in quantum control theory. The physical significance of the derived dynamical equation is illustrated by both general analysis and concrete examples. We show that control can be realized by fast-changing external fields, even fast noises. We illustrate the results by quantum memory and controlled adiabatic paths.