Formation of Ultracold Heteronuclear Dimers in Electric Fields

Abstract

The formation of ultracold molecules via stimulated emission followed by a radiative deexcitation cascade in the presence of a static electric field is investigated. By analyzing the corresponding cross sections, we demonstrate the possibility to populate the lowest rotational excitations via photoassociation. The modification of the radiative cascade due to the electric field leads to narrow rotational state distributions in the vibrational ground state. External fields might therefore represent an additional valuable tool towards the ultimate goal of quantum state preparation of molecules.

References in corpus (7)

• Observation of Bose-Einstein Condensation of Molecules
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• Spectroscopic insensitivity to cold collisions in a two-state mixture of fermions
• Controlling electronic spin relaxation of cold molecules with electric fields
• The X${}^1{\Sigma }^{+}$ and a${}^3{\Sigma }^{+}$ states of LiCs studied by Fourier-transform spectroscopy
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Cited by in corpus (2)

• Comparative study of the rovibrational properties of heteronuclear alkali dimers in electric fields
• Thermodynamical approaches to efficient sympathetic cooling in ultracold Fermi-Bose atomic mixtures