Abstract
We have realized a two-dimensional permanent magnetic lattice of Ioffe-Pritchard microtraps for ultracold atoms. The lattice is formed by a single magnetized layer of FePt, patterned using optical lithography. Our magnetic lattice consists of more than 15 000 tightly confining microtraps with a density of . 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 from the film surface. The present result is an important first step toward quantum information processing with neutral atoms in magnetic lattice potentials.
- Received 8 June 2007
DOI:https://doi.org/10.1103/PhysRevA.76.033408
©2007 American Physical Society