He started with a GPS-disciplined oscillator he had built earlier and planned to convert it to discipline from the rubidium clock. The connector looks like a D-shell connector superficially ...

He’s made a real-time-clock module controlled by a rubidium frequency standard, and since it also includes a GPS clock he can track local time dilation effects by comparing the two. Surplus ...

One current use is in atomic clocks, though rubidium is considered less accurate than caesium. The rubidium version of the atomic clock employs the transition between two hyperfine energy states of ...

In a quantum experiment, scientists observed photons spending ‘negative time’ in a cloud of rubidium atoms ... is that if you ...