2007/06/30 by R. Gerritsma, S. Whitlock, T. Fernholz +8
Physics and Astronomy · #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Lattice (music) #Lattice constant #Magnetic field #Magnetic trap #Optical lattice #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum mechanics #Theoretical and Computational Physics #Ultracold atom #physics.atom-ph
paper · pdf · doi:10.1103/physreva.76.033408
published as Phys. Rev. A 76, 033408 (2007) · 7 pages, 7 figures
openalex publication_date 2007/09/19 · arxiv created 2007/09/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We have realized a two-dimensional permanent magnetic lattice of Ioffe-Pritchard microtraps for ultracold atoms. The lattice is formed by a single 300\text\ensuremath-nm magnetized layer of FePt, patterned using optical lithography. Our magnetic lattice consists of more than 15 000 tightly confining microtraps with a density of 1250\phantom\rule0.3em0extraps∕mm2. 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\phantom\rule0.3em0ex\ensuremathμm from the film surface. The present result is an important first step toward quantum information processing with neutral atoms in magnetic lattice potentials.