Bose-Einstein Condensation of Erbium

2012/04/30 by K. Aikawa, A. Frisch, M. Mark +4 · 3 citations
Physics and Astronomy · #cond-mat.quant-gas #physics.atom-ph

paper · pdf · doi:10.1103/physrevlett.108.210401

published as Phys. Rev. Lett. 108, 210401 (2012) · 4 pages, 3 figures

arxiv created 2012/05/21 · arxiv updated 2012/05/22

Abstract

We report on the achievement of Bose-Einstein condensation of erbium atoms and on the observation of magnetic Feshbach resonances at low magnetic field. By means of evaporative cooling in an optical dipole trap, we produce pure condensates of ¹⁶⁸Er, containing up to 7 × 10⁴ atoms. Feshbach spectroscopy reveals an extraordinary rich loss spectrum with six loss resonances already in a narrow magnetic-field range up to 3 G. Finally, we demonstrate the application of a low-field Feshbach resonance to produce a tunable dipolar Bose-Einstein condensate and we observe its characteristic d-wave collapse.

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