85Tunable-interaction Bose-einstein condensate machine

P. A. Altin; N. P. Robins; D. Döring; J. E. Debs; R. Poldy; C. Figl; J. D. Close

doi:10.1063/1.3430538

⁸⁵Tunable-interaction Bose-einstein condensate machine

P. A. Altin, N. P. Robins, D. Döring, J. E. Debs, R. Poldy, C. Figl, J. D. Close

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36 Citations (Scopus)

Abstract

We describe our experimental setup for creating stable Bose-Einstein condensates (BECs) of ⁸⁵ with tunable interparticle interactions. We use sympathetic cooling with ⁸⁷ in two stages, initially in a tight Ioffe-Pritchard magnetic trap and subsequently in a weak, large-volume, crossed optical dipole trap, using the 155 G Feshbach resonance to manipulate the elastic and inelastic scattering properties of the ⁸⁵ atoms. Typical ⁸⁵ condensates contain 4× 104 atoms with a scattering length of a=+200 a₀. Many aspects of the design presented here could be adapted to other dual-species BEC machines, including those involving degenerate Fermi-Bose mixtures. Our minimalist apparatus is well suited to experiments on dual-species and spinor Rb condensates, and has several simplifications over the ⁸⁵ BEC machine at JILA, which we discuss at the end of this article.

Original language	English
Article number	063103
Journal	Review of Scientific Instruments
Volume	81
Issue number	6
DOIs	https://doi.org/10.1063/1.3430538
Publication status	Published - Jun 2010

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title = "85Tunable-interaction Bose-einstein condensate machine",

abstract = "We describe our experimental setup for creating stable Bose-Einstein condensates (BECs) of 85 with tunable interparticle interactions. We use sympathetic cooling with 87 in two stages, initially in a tight Ioffe-Pritchard magnetic trap and subsequently in a weak, large-volume, crossed optical dipole trap, using the 155 G Feshbach resonance to manipulate the elastic and inelastic scattering properties of the 85 atoms. Typical 85 condensates contain 4× 104 atoms with a scattering length of a=+200 a0. Many aspects of the design presented here could be adapted to other dual-species BEC machines, including those involving degenerate Fermi-Bose mixtures. Our minimalist apparatus is well suited to experiments on dual-species and spinor Rb condensates, and has several simplifications over the 85 BEC machine at JILA, which we discuss at the end of this article.",

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month = jun,

doi = "10.1063/1.3430538",

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T1 - 85Tunable-interaction Bose-einstein condensate machine

AU - Altin, P. A.

AU - Robins, N. P.

AU - Döring, D.

AU - Debs, J. E.

AU - Poldy, R.

AU - Figl, C.

AU - Close, J. D.

PY - 2010/6

Y1 - 2010/6

N2 - We describe our experimental setup for creating stable Bose-Einstein condensates (BECs) of 85 with tunable interparticle interactions. We use sympathetic cooling with 87 in two stages, initially in a tight Ioffe-Pritchard magnetic trap and subsequently in a weak, large-volume, crossed optical dipole trap, using the 155 G Feshbach resonance to manipulate the elastic and inelastic scattering properties of the 85 atoms. Typical 85 condensates contain 4× 104 atoms with a scattering length of a=+200 a0. Many aspects of the design presented here could be adapted to other dual-species BEC machines, including those involving degenerate Fermi-Bose mixtures. Our minimalist apparatus is well suited to experiments on dual-species and spinor Rb condensates, and has several simplifications over the 85 BEC machine at JILA, which we discuss at the end of this article.

AB - We describe our experimental setup for creating stable Bose-Einstein condensates (BECs) of 85 with tunable interparticle interactions. We use sympathetic cooling with 87 in two stages, initially in a tight Ioffe-Pritchard magnetic trap and subsequently in a weak, large-volume, crossed optical dipole trap, using the 155 G Feshbach resonance to manipulate the elastic and inelastic scattering properties of the 85 atoms. Typical 85 condensates contain 4× 104 atoms with a scattering length of a=+200 a0. Many aspects of the design presented here could be adapted to other dual-species BEC machines, including those involving degenerate Fermi-Bose mixtures. Our minimalist apparatus is well suited to experiments on dual-species and spinor Rb condensates, and has several simplifications over the 85 BEC machine at JILA, which we discuss at the end of this article.

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DO - 10.1063/1.3430538

M3 - Article

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VL - 81

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 6

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ER -

⁸⁵Tunable-interaction Bose-einstein condensate machine

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