Laser control in a bifurcating region

D. Sugny, C. Kontz, M. Ndong, Y. Justum, G. Dive, and M. Desouter-Lecomte
Phys. Rev. A 74, 043419 – Published 27 October 2006

Abstract

We present a complete analysis of the laser control of a model molecular system using both optimal control theory and adiabatic techniques. This molecule has a particular potential energy surface with a bifurcating region connecting three potential wells which allows a variety of processes such as isomerization, tunneling, or implementation of quantum gates on one or two qubits. The parameters of the model have been chosen so as to reproduce the main features of H3CO which is a molecule benchmark for such dynamics. We show the feasibility of different processes and we investigate their robustness against variations of laser field. We discuss the conditions under which each method of control gives the best results. We also point out the relation between optimal control theory and local control.

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  • Received 28 April 2006

DOI:https://doi.org/10.1103/PhysRevA.74.043419

©2006 American Physical Society

Authors & Affiliations

D. Sugny1, C. Kontz1, M. Ndong2, Y. Justum2, G. Dive3, and M. Desouter-Lecomte4,*

  • 1Laboratoire de Physique de l’Université de Bourgogne, Unité Mixte de Recherches 5027 CNRS et Université de Bourgogne, BP 47870, 21078 Dijon, France
  • 2Laboratoire de Chimie Physique, Unité Mixte de Recherches 8000, CNRS et Université de Paris-Sud-11, 91405 Orsay Cedex, France
  • 3Centre d’Ingéniérie des Protéines, Université de Liège, Sart Tilman B6, B-4000 Liège, Belgium
  • 4Laboratoire de Chimie Physique, Unité Mixte de Recherches 8000, CNRS et Université de Paris-Sud-11, 91405 Orsay Cedex, France and Département de Chimie, Université de Liège, Institut de Chimie B6, Sart-Tilman, B-4000, Liège 1, Belgium

  • *Corresponding author. Electronic address: mdesoute@lcp.u-psud.fr

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Issue

Vol. 74, Iss. 4 — October 2006

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