Simultaneous approximate tracking of density matrices for a system of Schrödinger equations

Thomas Chambrion (1, 2) , Mario Sigalotti (1, 2)

1 CORIDA - Robust control of infinite dimensional systems and applications
2 IECN - Institut Élie Cartan de Nancy

We consider a non-resonant system of finitely many bilinear Schro¿dinger equations with discrete spectrum driven by the same scalar control.We prove that this system can approximately track any given system of trajectories of density matrices, up to the phase of the coordinates. The result is valid both for bounded and unbounded Schro¿dinger operators. The method used relies on finite-dimensional control techniques applied to Lie groups. We provide also an example showing that no approximate tracking of both modulus and phase is possible.

Domaines: Optimisation et contrôle [math.OC]

Thomas Chambrion, Mario Sigalotti. Simultaneous approximate tracking of density matrices for a system of Schrödinger equations. Conference on Decision and Control, Dec 2009, Shanghai, China. pp.357-362, ⟨10.1109/CDC.2009.5399896⟩. ⟨hal-00589553⟩