A Miniature Cold-Atom Frequency Standard

TL;DR

This paper presents a compact, low-power cold-atom frequency standard that achieves high stability, paving the way for portable atomic clocks and sensors outside laboratory settings.

Contribution

The authors develop and demonstrate a fully integrated, palm-sized cold-atom system functioning as a highly stable atomic clock, a significant miniaturization advancement.

Findings

Achieves 2 parts in 10^11 stability at 1 second

Demonstrates a portable, fully integrated cold-atom system

Shows potential for practical, field-deployable atomic sensors

Abstract

Atomic sensors employing cold-atom technology enable unprecedented accuracy and resolution for next generation atomic clocks, magnetometers, gravimeters, and gyroscopes. To date, however, the size and complexity of cold atom systems have prevented their deployment in practical applications outside of large research laboratories. Here we demonstrate a low power, palm-top, and fully integrated cold atom system that functions as an atomic clock with a stability of 2 parts in 10^11 at 1s. This work demonstrates the feasibility of developing compact, robust, and portable devices based on laser cooled atoms.