corner
corner

Phys. Rev. Lett. 100, 123001 (2008) [4 pages]

Hyperfine-Structure-Induced Purely Long-Range Molecules

Download: PDF (624 kB) Buy this article Export: BibTeX or EndNote (RIS)

Katsunari Enomoto1, Masaaki Kitagawa1, Satoshi Tojo2, and Yoshiro Takahashi1,3
1Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
2Department of Physics, Faculty of Science, Gakushuin University, Tokyo 171-8588, Japan
3CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan

Received 18 July 2007; published 24 March 2008

We have experimentally observed and theoretically identified a novel class of purely long-range molecules. This novel purely long-range state is formed due to a very weak hyperfine interaction that is usually treated only as a small perturbation in molecular spectra. Photoassociation spectroscopy of ultracold ytterbium (171Yb) atoms with the 1S0-3P1 intercombination transition presents clear identification of molecular states and the shallowest molecular potential depth of about 750 MHz among the purely long-range molecules ever observed.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.123001
DOI:
10.1103/PhysRevLett.100.123001
PACS:
33.15.Pw, 34.20.Cf, 37.10.De