Table 1 Table of noise sources and their contributions to the 1 s Allan deviations stability.
From: A cold-atom Ramsey clock with a low volume physics package
Noise source | \(\sigma \) contribution \((\tau =1s)\) |
|---|---|
SNR | \(8.95 \times 10^{-12}\) |
Electronic noise | \(1.14 \times 10^{-12}\) |
Dick | \(6.12 \times 10^{-13}\) |
Zeeman | \(1.07 \times 10^{-12}\) |
QPN | \(4.90 \times 10^{-13}\) |
Total \(\bigg (\sqrt{\sigma _{SNR}^2+\sigma _{Electronic}^2+\sigma _{Dick}^2}\bigg )\) | \(9.04\times 10^{-12}\) |
Measured | \(1.49\times 10^{-11}\) |
