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.
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Publication status||Published - Sep 2003|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics