| Autor: |
Elvin, Rachel, Wright, Michael W., Lewis, Ben, Keliehor, Brendan L., Bregazzi, Alan, McGilligan, James P., Arnold, Aidan S., Griffin, Paul F., Riis, Erling |
| Předmět: |
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| Zdroj: |
Advanced Optical Technologies; Oct2020, Vol. 9 Issue 5, p297-303, 7p |
| Abstrakt: |
A compact platform for cold atoms opens a range of exciting possibilities for portable, robust and accessible quantum sensors. In this work, we report on the development of a cold-atom microwave clock in a small package. Our work utilises the grating magneto-optical trap and high-contrast coherent population trapping in the lin ⊥ $\perp $ lin polarisation scheme. We optically probe the atomic ground-state splitting of cold 87Rb atoms using a Ramsey-like sequence whilst the atoms are in free-fall. We have measured a short-term fractional frequency stability of 5 × 10 − 11 / τ $5{\times}{10}^{-11}/\sqrt{\tau }$ with a projected quantum projection noise limit at the 10 − 13 / τ ${10}^{-13}/\sqrt{\tau }$ level. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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