An ultracold, optically trapped mixture of
- Adonis Silva Flores
- Hari Prasad Mishra
- Wim Vassen
- Steven Knoop
Publication date
March 2017
DOI Publisher
Springer Science and Business Media LLCAbstract
We report on the realization of an ultracold (<25 μK) mixture of rubidium (87Rb) and metastable triplet helium (4He) in an optical dipole trap. Our scheme involves laser cooling in a dual-species magneto-optical trap, simultaneous MW- and RF-induced forced evaporative cooling in a quadrupole magnetic trap, and transfer to a single-beam optical dipole trap. We observe long trapping lifetimes for the doubly spin-stretched spin-state mixture and measure much shorter lifetimes for other spin-state combinations. We discuss prospects for realizing quantum degenerate mixtures of alkali-metal and metastable helium atoms
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