Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 409

The DOI matches its Crossref record.

Spin-Singlet Bose-Einstein Condensation of Two-Electron Atoms

Open access
Takasu, Yosuke, Maki, Kenichi, Komori, Kaduki, Takano, Tetsushi, Honda, Kazuhito, Kumakura, Mitsutaka, Yabuzaki, Tsutomu, Takahashi, Yoshiro·2003·Physical Review Letters

Abstract

We report the observation of a Bose-Einstein condensation of ytterbium atoms by evaporative cooling in a novel crossed optical trap. Unlike the previously observed condensates, a ytterbium condensate is a two-electron system in a singlet state and has distinct features such as the extremely narrow intercombination transitions which are ideal for future optical frequency standard and the insensitivity to external magnetic field which is important for precision coherent atom optics, and the existence of the novel metastable triplet states generated by optical excitation from the singlet state.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1103/physrevlett.91.040404

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 409

Metadata

Authors
Takasu, Y., Maki, K., Komori, K., Takano, T., Honda, K., Kumakura, M., Yabuzaki, T., & Takahashi, Y.
Venue
Physical Review Letters
Published
2003-07-25
Volume
91
Issue
4
Pages
040404-040404
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2077273517
Cited by
409
References
0
FWCI
21.30
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Spin-Singlet Bose-Einstein Condensation of Two-Electron Atoms. https://app.cochat.ai/papers/10.1103/physrevlett.91.040404
The paper
Takasu, Y., Maki, K., Komori, K., Takano, T., Honda, K., Kumakura, M., Yabuzaki, T., & Takahashi, Y. (2003). Spin-Singlet Bose-Einstein Condensation of Two-Electron Atoms. Physical Review Letters. https://doi.org/10.1103/physrevlett.91.040404

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.