Physics – Quantum Physics
Scientific paper
2007-05-24
Physics
Quantum Physics
article soumis a PRL le 21 mars 2007, accepte le 10 mai, version 2 (24/05/2007)
Scientific paper
10.1103/PhysRevLett.99.013001
A scheme for a THz frequency standard based on three-photon coherent population trapping in stored ions is proposed. Assuming the propagation directions of the three lasers obey the phase matching condition, we show that stability of few 10$^{-14}$ at one second can be reached with a precision limited by power broadening to $10^{-11}$ in the less favorable case. The referenced THz signal can be propagated over long distances, the useful information being carried by the relative frequency of the three optical photons.
Champenois Caroline
Hagel Gaëtan
Houssin Marie
Knoop Martina
Vedel Fernande
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