Title

Proposal For A Laser Control Of Vibrational Cooling In Na2 Using Resonance Coalescence

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 Na2 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 Na2 referring to cascade transfers involving multiple EPs and predicted to be robust up to a 78% rate against laser-induced dissociation. © 2011 American Physical Society.

Publication Date

4-29-2011

Publication Title

Physical Review Letters

Volume

106

Issue

17

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.106.173002

Socpus ID

79960678735 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79960678735

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