Lattice of microtraps for ultracold atoms based on patterned magnetic films
| Autor: | Rene Gerritsma, H. Schlatter, J.A. Luigjes, Shannon Whitlock, Thomas Fernholz, J. B. Goedkoop, Robert J. C. Spreeuw, J.U. Thiele |
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| Přispěvatelé: | Quantum Gases & Quantum Information (WZI, IoP, FNWI) |
| Rok vydání: | 2007 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Optical lattice Condensed matter physics Atomic Physics (physics.atom-ph) FOS: Physical sciences Magnetic lattice Atomic and Molecular Physics and Optics Physics - Atomic Physics Magnetic field Particle in a one-dimensional lattice Magnetization Ultracold atom Lattice (order) Physics::Atomic Physics Thin film |
| Zdroj: | Physical Review A, 76. American Physical Society |
| ISSN: | 1094-1622 1050-2947 |
| DOI: | 10.1103/physreva.76.033408 |
| Popis: | 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$^2$. 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 $\mu$m from the film surface. The present result is an important first step towards quantum information processing with neutral atoms in magnetic lattice potentials. Comment: 7 pages, 7 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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