ZAIGA: Zhaoshan Long-baseline Atom Interferometer Gravitation Antenna

Understand

The Zhaoshan long-baseline Atom Interferometer Gravitation Antenna (ZAIGA) is a new type of underground laser-linked interferometer facility, and is currently under construction.

• It is in the 200-meter-on-average underground of a mountain named Zhaoshan which is about 80 km southeast to Wuhan.
• ZAIGA will be equipped with long-baseline atom interferometers, high-precision atom clocks, and large-scale gyros.
• ZAIGA facility will take an equilateral triangle configuration with two 1-km-apart atom interferometers in each arm, a 300-meter vertical tunnel with atom fountain and atom clocks mounted, and a tracking-and-ranging 1-km-arm-length prototype with lattice optical clocks linked by locked lasers.