Characterization of the CAPP magnetometer for GNOME

Abstract

The Global Network of Optical Magnetometers to search for Exotic physics (GNOME) is an experiment to search for transient events of axion domain walls based on a novel scheme: synchronous measurements of high precision optical magnetometer signals from multiple stations around the Earth. This collaboration now consists of more than 10 magnetometer stations located geographically well apart from each other. One of them at the Center for Axion and Precision Physics (CAPP) is a newly joined station in Daejeon, South Korea and expects to start the operation of an optical magnetometer for GNOME by the end of 2017. We present initial setup and characterization of the atomic magnetometer at CAPP station.