Programmable trap geometries with superconducting atom chips
Chan, K. S.
Lim, M. J.
Date of Issue2010
School of Physical and Mathematical Sciences
We employ the hysteretic behavior of a superconducting thin film in the remanent state to generate different traps and flexible magnetic potentials for ultracold atoms. The trap geometry can be programed by externally applied fields. This approach for atom optics is demonstrated by three different trap types realized on a single microstructure: a Z-type trap, a double trap, and a bias-field-free trap. Our studies show that superconductors in the remanent state provide a versatile platform for atom optics and applications in ultracold quantum gases.
Physical review A
© 2010 The American Physical Society. This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of The American Physical Society. The paper can be found at the following official DOI: [DOI: http://dx.doi.org/10.1103/PhysRevA.81.053624]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.