A lattice of microtraps for ultracold atoms based on patterned magnetic films
Atomic Physics
2009-11-13 v2
Abstract
We have realized a two dimensional permanent magnetic lattice of Ioffe-Pritchard microtraps for ultracold atoms. The lattice is formed by a single 300 nm magnetized layer of FePt, patterned using optical lithography. Our magnetic lattice consists of more than 15000 tightly confining microtraps with a density of 1250 traps/mm. Simple analytical approximations for the magnetic fields produced by the lattice are used to derive relevant trap parameters. We load ultracold atoms into at least 30 lattice sites at a distance of approximately 10 m from the film surface. The present result is an important first step towards quantum information processing with neutral atoms in magnetic lattice potentials.
Keywords
Cite
@article{arxiv.0706.1170,
title = {A lattice of microtraps for ultracold atoms based on patterned magnetic films},
author = {R. Gerritsma and S. Whitlock and T. Fernholz and H. Schlatter and J. A. Luigjes and J. -U. Thiele and J. B. Goedkoop and R. J. C. Spreeuw},
journal= {arXiv preprint arXiv:0706.1170},
year = {2009}
}
Comments
7 pages, 7 figures