Microfabricated atomic clocks and magnetometers

We demonstrate the critical subsystems of a compact atomic clock based on a microfabricated physics package. The clock components have a total volume below 10 cm(3), a fractional frequency instability of 6 x 10(-10)/tau(1/2), and consume 200 mW of power. The physics package is easily adapted to function as a magnetometer with sensitivity below 50 pT Hz(-1/2) at 10 Hz.