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A Time-Orbiting Potential Trap for Bose-Einstein Condensate Interferometry

J. M. Reeves·O. Garcia·B. Deissler·K. L. Baranowski·K. J. Hughes·C. A. Sackett
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Abstract

We describe a novel atom trap for Bose-Einstein condensates of 87Rb to be used in atom interferometry experiments. The trap is based on a time-orbiting potential waveguide. It supports the atoms against gravity while providing weak confinement to minimize interaction effects. We observe harmonic oscillation frequencies omega_x, omega_y, omega_z as low as 2 pi times (6.0,1.2,3.3) Hz. Up to 2 times 10^4 condensate atoms have been loaded into the trap, at estimated temperatures as low as 850 pK. We anticipate that interferometer measurement times of 1 s or more should be achievable in this device.

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J. M. Reeves, O. Garcia, B. Deissler, K. L. Baranowski, K. J. Hughes, C. A. Sackett. 2005-10-27. A Time-Orbiting Potential Trap for Bose-Einstein Condensate Interferometry. https://doi.org/10.1103/physreva.72.051605

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