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Degenerate Fermi Gas of Sr87

B. J. DeSalvo, M. Yan, P. G. Mickelson, Y. N. Martinez de Escobar, and T. C. Killian
Phys. Rev. Lett. 105, 030402 – Published 13 July 2010

Abstract

We report quantum degeneracy in a gas of ultracold fermionic Sr87 atoms. By evaporatively cooling a mixture of spin states in an optical dipole trap for 10.5 s, we obtain samples well into the degenerate regime with T/TF=0.260.06+0.05. The main signature of degeneracy is a change in the momentum distribution as measured by time-of-flight imaging, and we also observe a decrease in evaporation efficiency below T/TF0.5.

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  • Received 5 May 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.030402

©2010 American Physical Society

Authors & Affiliations

B. J. DeSalvo, M. Yan, P. G. Mickelson, Y. N. Martinez de Escobar, and T. C. Killian

  • Department of Physics and Astronomy, Rice University, Houston, Texas, 77251, USA

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Issue

Vol. 105, Iss. 3 — 16 July 2010

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