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Controllability and weak conical connectedness of the spectrum for control-affine quantum systems

Ruikang Liang

6/26/23, 4:30 PM

We explore the controllability of a closed control-affine quantum system driven by two external fields. The controllability properties of such a system are known to be closely related to its spectrum, seen as a function of the control. Previous studies have demonstrated that a spectrum connected by non-overlapping conical intersections yields exact controllability in the finite-dimensional...