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Nonlinear dynamics of molecular superrotors

C. Chandre*

J. Pablo Salas†

  • CNRS, Aix Marseille Université, I2M, 13009 Marseille, France

  • Área de Física, Universidad de la Rioja, 26006 Logroño, La Rioja, Spain

  • *cristel.chandre@cnrs.fr
  • †josepablo.salas@unirioja.es
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Phys. Rev. A 107, 063105 – Published 8 June, 2023

DOI: https://doi.org/10.1103/PhysRevA.107.063105

Abstract

We consider a diatomic molecule driven by a linearly polarized laser pulse with a polarization axis rotating with a constant acceleration. This setup is referred to as optical centrifuge, and it is known to lead to high-angular momenta for the molecule (superrotor states) and, possibly, to dissociation. Here we elucidate the dynamical mechanisms behind the creation of superrotor states and their dissociation. We unravel the role of the various parameters of the laser field in these processes by considering reduced Hamiltonian models encapsulating the different phases in the creation of superrotor states, possibly leading to dissociation.

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Phys. Rev. A 107, 063105– Published 8 June, 2023
  • Received 1 March 2023
  • Accepted 22 May 2023
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