Dissociation of HF molecule in position and momentum representation by an optimally controlled polychromatic field: study in the dual space using simulated annealing

Abstract

Complementarity of position and momentum representation is at the heart of quantum mechanics. Dissociation of diatomic molecule can be investigated and controlled in conventional coordinate space as well as in momentum space. Our objective in this article is to have the control over the dissociation process irrespective of the representation. We have applied Simulated Annealing (SA) technique for the optimisation of the field, where the effective field strength is kept sufficiently low. The optimisation is carried out in both momentum and position representation on with completely different objective function but leading to similar result.

GRAPHICAL ABSTRACT

Keywords:

• Momentum representation
• polychromatic field
• simulated annealing
• dissociation dynamics
• optimal control

Disclosure statement

No potential conflict of interest was reported by the author(s).