PHOTODISSOCIATION OF ULTRACOLD MOLECULES

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1998

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Ohio State University

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Abstract

Translationally cold molecules can be produced during photoassociation experiments on ultracold atoms. We explore the photodissociation of these ultracold molecules in given rovibrational levels of their lowest electronic state into the excited electronic states. More precisely, we study the dissociation of 7Li2 molecules in specific rovibrational level of the triplet electronic state α3Σu+ to the 2s+2p limit. We observe structures at extremely low energies. We also explore the dissociation of the vibrational levels of the excited electronic states formed during photoassociation experiments on ultracold atoms. They are produced in specific rovibrational levels, and due to the presence of shape resonances, it is found that for certain energy regimes, the cross sections are strongly enhanced. Precise calculations will be presented for lithium.

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a This work was supported by the National Science Foundation through the Institute for Theoretical Atomic and Molecular Physcis (ITAMP).


Author Institution: Institute for Theoretical Atomic and Molecular Physics (ITAMP), Harvard-Smithsonian Center for Astrophysics

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