title: Magnetic-film atom chip with 10 μm period lattices of microtraps for quantum information science with Rydberg atoms.
abstract: We describe the fabrication and construction of a setup for creating lattices of magnetic microtraps for ultracold atoms on an atom chip. The lattice is defined by lithographic patterning of a permanent magnetic film. Patterned magnetic-film atom chips enable a large variety of trapping geometries over a wide range of length scales. We demonstrate an atom chip with a lattice constant of 10 μm, suitable for experiments in quantum information science employing the interaction between atoms in highly excited Rydberg energy levels. The active trapping region contains lattice regions with square and hexagonal symmetry, with the two regions joined at an interface. A structure of macroscopic wires, cutout of a silver foil, was mounted under the atom chip in order to load ultracold (87)Rb atoms into the microtraps. We demonstrate loading of atoms into the square and hexagonal lattice sections simultaneously and show resolved imaging of individual lattice sites. Magnetic-film lattices on atom chips provide a versatile platform for experiments with ultracold atoms, in particular for quantum information science and quantum simulation.
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: V Y F
authors.initials: VY
authors.lastname: Leung
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: D R M
authors.initials: DR
authors.lastname: Pijn
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: H
authors.initials: H
authors.lastname: Schlatter
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: L
authors.initials: L
authors.lastname: Torralbo-Campo
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: A L
authors.initials: AL
authors.lastname: La Rooij
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: G B
authors.initials: GB
authors.lastname: Mulder
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: J
authors.initials: J
authors.lastname: Naber
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: M L
authors.initials: ML
authors.lastname: Soudijn
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: A
authors.initials: A
authors.lastname: Tauschinsky
authors.affiliation: Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel.
authors.forename: C
authors.initials: C
authors.lastname: Abarbanel
authors.affiliation: Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel.
authors.forename: B
authors.initials: B
authors.lastname: Hadad
authors.affiliation: Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel.
authors.forename: E
authors.initials: E
authors.lastname: Golan
authors.affiliation: Department of Physics and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel.
authors.forename: R
authors.initials: R
authors.lastname: Folman
authors.affiliation: Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, PO Box 94485, 1090 GL Amsterdam, The Netherlands.
authors.forename: R J C
authors.initials: RJ
authors.lastname: Spreeuw