Complete controllability of quantum systems

Abstract

Sufficient conditions for complete controllability of $N$-level quantum systems subject to a single control pulse that addresses multiple allowed transitions concurrently are established. The results are applied in particular to Morse and harmonic-oscillator systems, as well as some systems with degenerate energy levels. Morse and harmonic oscillators serve as models for molecular bonds, and the standard control approach of using a sequence of frequency-selective pulses to address a single transition at a time is either not applicable or only of limited utility for such systems.

8 pages, expanded and revised version

References in corpus (2)

• Efficient Algorithm for Optimal Control of Mixed-State Quantum Systems
• Limits of control for quantum systems: kinematical bounds on the optimization of observables and the question of dynamical realizability

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