Fully permanent magnet atom chip for Bose-Einstein condensation

T. Fernholz, R. Gerritsma, S. Whitlock, I. Barb, and R. J. C. Spreeuw
Phys. Rev. A 77, 033409 – Published 13 March 2008

Abstract

We describe a proof-of-principle experiment on a fully permanent magnet atom chip. We study ultracold atoms and produce a Bose-Einstein condensate. The magnetic trap is loaded efficiently by adiabatic transport of a magnetic trap via the application of uniform external fields. Radio frequency spectroscopy is used for in-trap analysis and to determine the temperature of the atomic cloud. The formation of a Bose-Einstein condensate is observed in time-of-flight images and as a narrow peak appearing in the radio frequency spectrum.

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  • Received 18 May 2007

DOI:https://doi.org/10.1103/PhysRevA.77.033409

©2008 American Physical Society

Authors & Affiliations

T. Fernholz1,*, R. Gerritsma1,†, S. Whitlock1,2, I. Barb1, and R. J. C. Spreeuw1

  • 1Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam, Netherlands
  • 2ARC Centre of Excellence for Quantum-Atom Optics and Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia

  • *Present address: QUANTOP, Danish Quantum Optics Center, Niels Bohr Institute, 2100 Copenhagen, Denmark; fernholz@nbi.dk
  • Present address: Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, Otto-Hittmair-Platz 1, A-6020 Innsbruck, Austria.

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Vol. 77, Iss. 3 — March 2008

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