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arXiv · 1003.5417

Programmable trap geometries with superconducting atom chips

T. Mueller·B. Zhang·R. Fermani·K. S. Chan·M. J. Lim·R. Dumke
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Abstract

We employ the hysteretic behavior of a superconducting thin film in the remanent state to generate different traps and flexible magnetic potentials for ultra-cold atoms. The trap geometry can be programmed by externally applied fields. This new approach for atom-optics is demonstrated by three different trap types realized on a single micro-structure: a Z-type trap, a double trap and a bias field free trap. Our studies show that superconductors in the remanent state provide a new versatile platform for atom-optics and applications in ultra-cold quantum gases.

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T. Mueller, B. Zhang, R. Fermani, K. S. Chan, M. J. Lim, R. Dumke. 2010-03-29. Programmable trap geometries with superconducting atom chips. https://doi.org/10.1103/physreva.81.053624

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