Clock transition for a future optical frequency standard with trapped atoms

Irène Courtillot, Audrey Quessada, Richard P. Kovacich, Anders Brusch, Dmitri Kolker, Jean Jacques Zondy, Giovanni D. Rovera, Pierre Lemonde

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


Two different approaches are commonly used to develop optical frequency standards. The first one is based on the spectroscopy of a single trapped ion, the second on the spectroscopy of a large ensemble of free falling neutral atoms. It is a commonly shared opinion that the ion approach may lead to a better ultimate frequency accuracy due to the "perfect" control of the ion motion, while the atomic approach should lead to a better frequency stability with the help of numerous quantum references contributing to the signal.

Original languageEnglish
Article number030501
Pages (from-to)030501/1-030501/4
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
Publication statusPublished - Sep 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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