engleski

Photoassociation of cesium atoms into the double minimum Cs_2 3 1Sigma^+_u state

We have observed the transition form the free colliding pair of cesium atoms into the outher well of the double minimum Cs_2 3 ^1sigma^+_u state. This photoassociation process takes place in a cesium vapor consisting predominantly of atoms, in which dimers have been about 85% thermally dissociated. Excellent agreement with quasiclassical simulations was found. We discuss the possibility of using a double minimum Cs_2 3 ^1sigma^+_u state for the formation of ultracold Cs_2 X ^1sigma^+_g molecules.

cesium; photoassociation; ultracold molecules

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