MAGIS-100 Environmental Characterization and Noise Analysis

TL;DR

This paper characterizes environmental noise and site-specific systematics for the MAGIS-100 atomic interferometry experiment, providing insights into mitigation strategies for temperature, humidity, and vibrations to optimize experimental performance.

Contribution

It offers a detailed environmental characterization and noise analysis for MAGIS-100, including temperature, humidity, and vibration measurements, and models gravity gradient noise mitigation.

Findings

Temperature fluctuations require enclosures and temperature-controlled laser rooms.

Vibration spectrum analysis informs seismic noise mitigation.

Gravity gradient noise can be mitigated with stochastic simulation-based suppression schemes.

Abstract

We investigate and analyze site specific systematics for the MAGIS-100 atomic interferometry experiment at Fermi National Accelerator Laboratory. As atom interferometers move out of the laboratory environment passive and active mitigation for noise sources must be implemented. To inform the research and development of the experiment design, we measure ambient temperature, humidity, and vibrations of the installation site. We find that temperature fluctuations will necessitate enclosures for critical subsystems and a temperature controlled laser room for the laser system. We also measure and analyze the vibration spectrum above and below ground for the installation site. The seismic vibration effect of gravity gradient noise is also modeled using input from a low-noise seismometer at multiple locations and a mitigation scheme is studied using a stochastic simulation and characterized by a suppression factor.