Review of Scientific Instruments

A millimeter magnetic trap for a dual (85Rb and 87Rb) species atom interferometer

J Alibert, Boris Décamps, Maxime Bordoux, Baptiste Allard, A. Gauguet

Published Nov 1, 2017• 3 citations

Abstract

We present a magnetic trap for cold atoms near a surface of a millimeter-sized atom chip. The trap allows us to capture a large number of atoms with modest electrical currents (40 A) and to generate large magnetic gradients (>300 G cm−1). Here we report a mixture containing 6 × 109 atoms for the two rubidium isotopes 87Rb and 85Rb. This device does not require cleanroom facilities nor micro-machining technologies which makes its construction easier. In addition our design allows the implementation of an optical dipole trap with a laser beam passing through the chip.

DOI: 10.1063/1.4997149

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