Bose-Einstein Condensation in a Surface Microtrap

H. Ott, J. Fortagh, G. Schlotterbeck, A. Grossmann, and C. Zimmermann
Phys. Rev. Lett. 87, 230401 – Published 13 November 2001
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Abstract

Bose-Einstein condensation has been achieved in a magnetic surface microtrap with 4×10587Rb atoms. The strongly anisotropic trapping potential is generated by a microstructure which consists of microfabricated linear copper conductor of widths ranging from 3 to 30μm. After loading a high number of atoms from a pulsed thermal source directly into a magneto-optical trap the magnetically stored atoms are transferred into the microtrap by adiabatic transformation of the trapping potential. In the microtrap the atoms are cooled to condensation using forced rf-evaporation. The complete in vacuo trap design is compatible with ultrahigh vacuum below 2×1011mbar.

  • Received 6 July 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.230401

©2001 American Physical Society

Authors & Affiliations

H. Ott, J. Fortagh, G. Schlotterbeck, A. Grossmann, and C. Zimmermann

  • Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany

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Vol. 87, Iss. 23 — 3 December 2001

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