Title

Proposal for a Laser Control of Vibrational Cooling in Na-2 Using Resonance Coalescence

Authors

Authors

O. Atabek; R. Lefebvre; M. Lepers; A. Jaouadi; O. Dulieu;V. Kokoouline

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

GROUND-STATE MOLECULES; PULSES; IONS; GAS; Physics, Multidisciplinary

Abstract

With a specific choice of laser parameters resulting in a so-called exceptional point (EP) in the wavelength-intensity parameter plane, it is possible to produce the coalescence of two Floquet resonances describing the photodissociation of the Na-2 molecule, which is one of the candidates for the formation of samples of translationally cold molecules. By appropriately tuning laser parameters along a contour encircling the exceptional point, the resonances exchange their quantum nature. Thus a laser-controlled transfer of the probability density from one field-free vibrational level to another is achieved through adiabatic transport involving these resonances. We propose an efficient scenario for vibrational cooling of Na-2 referring to cascade transfers involving multiple EPs and predicted to be robust up to a 78% rate against laser-induced dissociation.

Journal Title

Physical Review Letters

Volume

106

Issue/Number

17

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000290100300008

ISSN

0031-9007

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