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Bose-Einstein Condensation of Atomic Hydrogen

Dale G. Fried, Thomas C. Killian, Lorenz Willmann, David Landhuis, Stephen C. Moss, Daniel Kleppner, and Thomas J. Greytak
Phys. Rev. Lett. 81, 3811 – Published 2 November 1998
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Abstract

We report observation of Bose-Einstein condensation (BEC) of a trapped, dilute gas of atomic hydrogen. The condensate and normal gas are studied by two-photon spectroscopy of the 1S- 2S transition. Interactions among the atoms produce a shift of the resonance frequency proportional to density. The condensate is clearly distinguished by its large frequency shift. The peak condensate density is 4.8±1.1×1015cm3, corresponding to a condensate population of 109 atoms. The BEC transition occurs at about T=50μK and n=1.8×1014cm3.

  • Received 11 September 1998

DOI:https://doi.org/10.1103/PhysRevLett.81.3811

©1998 American Physical Society

Authors & Affiliations

Dale G. Fried, Thomas C. Killian, Lorenz Willmann, David Landhuis, Stephen C. Moss, Daniel Kleppner, and Thomas J. Greytak

  • Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

See Also

Bose-Einstein Condensate in Hydrogen

Arthur Robinson
Phys. Rev. Focus 2, 22 (1998)

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Issue

Vol. 81, Iss. 18 — 2 November 1998

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