Quantum degenerate mixtures of strontium and rubidium atoms
Quantum Gases
2013-08-08 v1 Atomic Physics
Abstract
We report on the realization of quantum degenerate gas mixtures of the alkaline-earth element strontium with the alkali element rubidium. A key ingredient of our scheme is sympathetic cooling of Rb by Sr atoms that are continuously laser cooled on a narrow linewidth transition. This versatile technique allows us to produce ultracold gas mixtures with a phase-space density of up to 0.06 for both elements. By further evaporative cooling we create double Bose-Einstein condensates of 87Rb with either 88Sr or 84Sr, reaching more than 10^5 condensed atoms per element for the 84Sr-87Rb mixture. These quantum gas mixtures constitute an important step towards the production of a quantum gas of polar, open-shell RbSr molecules.
Keywords
Cite
@article{arxiv.1305.5935,
title = {Quantum degenerate mixtures of strontium and rubidium atoms},
author = {Benjamin Pasquiou and Alex Bayerle and Slava Tzanova and Simon Stellmer and Jacek Szczepkowski and Mark Parigger and Rudolf Grimm and Florian Schreck},
journal= {arXiv preprint arXiv:1305.5935},
year = {2013}
}
Comments
9 pages, 5 figures