Isotopic difference in the heteronuclear loss rate in a two-species surface trap

Abstract

We have realized a two-species mirror-magneto-optical trap containing a mixture of ${}^{87}$Rb (${}^{85}$Rb) and ${}^{133}$Cs atoms. Using this trap, we have measured the heteronuclear collisional loss rate ${\beta }_{Rb-Cs}^{\prime }$ due to intra-species cold collisions. We find a distinct difference in the magnitude and intensity dependence of ${\beta }_{Rb-Cs}^{\prime }$ for the two isotopes ${}^{87}$Rb and ${}^{85}$Rb which we attribute to the different ground-state hyperfine splitting energies of the two isotopes.

arXiv comment4 pages, 2 figures

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• Guiding Neutral Atoms
• A Beam Splitter for Guided Atoms on an Atom Chip
• Production of Ultracold, Polar RbCs* Molecules via Photoassociation
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Cited by in corpus (3)

• Interspecies collision-induced losses in a dual species 7Li-85Rb magneto-optical trap
• Single Cs Atoms as Collisional Probes in a large Rb Magneto-Optical Trap
• Light Assisted Collisional Loss in a ${}^{85/87}$Rb Ultracold Optical Trap