Quantized Fields for Optimal Control in the Strong Coupling Regime
Frieder Lindel, Edoardo G. Carnio, Stefan Yoshi Buhmann, Andreas Buchleitner · Physical Review Letters · 2023
We tailor the quantum statistics of a bosonic field to deterministically drive a quantum system into a target state. Experimentally accessible states of the field achieve good control of multilevel or multiqubit systems, notably also at coupling strengths beyond the rotating-wave approximation. This extends optimal control theory to the realm of fully quantized, strongly coupled control and target degrees of freedom.