Realization of a SU(2)×SU(6) system of fermions in a cold atomic gas.

• Taie, Shintaro

• Takasu, Yosuke

• Sugawa, Seiji

• Yamazaki, Rekishu

• Tsujimoto, Takuya

• Murakami, Ryo

• Takahashi, Yoshiro

Abstract

We report the realization of a novel degenerate Fermi mixture with an SU(2)×SU(6) symmetry in a cold atomic gas. We successfully cool the mixture of the two fermionic isotopes of ytterbium 171Yb with the nuclear spin I=1/2 and 173Yb with I=5/2 below the Fermi temperature T_{F} as 0.46TF for 171Yb and 0.54TF for 173Yb. The same scattering lengths for different spin components make this mixture featured with the novel SU(2)×SU(6) symmetry. The nuclear spin components are separately imaged by exploiting an optical Stern-Gerlach effect. In addition, the mixture is loaded into a 3D optical lattice to implement the SU(2)×SU(6) Hubbard model. This mixture will open the door to the study of novel quantum phases such as a spinor Bardeen-Cooper-Schrieffer-like fermionic superfluid.

Journal

• Physical review letters

  Physical review letters 105 (19), 2010-11-01

  American Physical Society

Details

• CRID: 1050845760746549248
• NII Article ID: 120005674592
• NII Book ID: AA00773679
• ISSN: 10797114
• HANDLE: 2433/201983
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN