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Title: Degenerate Fermi Gases of Ytterbium

Abstract

Evaporative cooling was performed to cool fermionic {sup 173}Yb atoms in a crossed optical dipole trap. The large elastic collision rate leads to efficient evaporation and we have successfully cooled the atoms to 0.37{+-}0.06 of the Fermi temperature, that is to say, to a quantum degenerate regime. In this regime, a plunge of evaporation efficiency was observed as a result of Fermi degeneracy.

Authors:
 [1];  [2];  [1];  [3];  [3];  [1];  [3]
  1. Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
  2. Department of Electronic Science and Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510 (Japan)
  3. (Japan)
Publication Date:
OSTI Identifier:
20861606
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevLett.98.030401; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; DIPOLES; EVAPORATION; EVAPORATIVE COOLING; FERMI GAS; FERMIONS; YTTERBIUM 173

Citation Formats

Fukuhara, Takeshi, Takasu, Yosuke, Kumakura, Mitsutaka, CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Takahashi, Yoshiro, and CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012. Degenerate Fermi Gases of Ytterbium. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.030401.
Fukuhara, Takeshi, Takasu, Yosuke, Kumakura, Mitsutaka, CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Takahashi, Yoshiro, & CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012. Degenerate Fermi Gases of Ytterbium. United States. doi:10.1103/PHYSREVLETT.98.030401.
Fukuhara, Takeshi, Takasu, Yosuke, Kumakura, Mitsutaka, CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Takahashi, Yoshiro, and CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012. Fri . "Degenerate Fermi Gases of Ytterbium". United States. doi:10.1103/PHYSREVLETT.98.030401.
@article{osti_20861606,
title = {Degenerate Fermi Gases of Ytterbium},
author = {Fukuhara, Takeshi and Takasu, Yosuke and Kumakura, Mitsutaka and CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012 and PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012 and Takahashi, Yoshiro and CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012},
abstractNote = {Evaporative cooling was performed to cool fermionic {sup 173}Yb atoms in a crossed optical dipole trap. The large elastic collision rate leads to efficient evaporation and we have successfully cooled the atoms to 0.37{+-}0.06 of the Fermi temperature, that is to say, to a quantum degenerate regime. In this regime, a plunge of evaporation efficiency was observed as a result of Fermi degeneracy.},
doi = {10.1103/PHYSREVLETT.98.030401},
journal = {Physical Review Letters},
number = 3,
volume = 98,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}