Physics – Quantum Physics
Scientific paper
2009-01-20
Physics
Quantum Physics
minor revisions + shortening; factor 2 algebra mistake corrected
Scientific paper
We propose a new light source based on having alkaline-earth atoms in an optical lattice collectively emit photons on an ultra-narrow clock transition into the mode of a high Q-resonator. The resultant optical radiation has an extremely narrow linewidth in the mHz range, even smaller than that of the clock transition itself due to collective effects. A power level of order $10^{-12}W$ is possible, sufficient for phase-locking a slave optical local oscillator. Realizing this light source has the potential to improve the stability of the best clocks by two orders of magnitude.
Carlson D. R.
Holland Murray J.
Meiser D.
Ye Jun
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