Interferometry with Synthetic Gauge Fields

TL;DR

This paper introduces a compact atom interferometry method utilizing synthetic gauge fields and internal state coupling to measure weak, time-dependent accelerations with high sensitivity, advancing precision measurement techniques.

Contribution

It presents a novel interferometry scheme using synthetic gauge fields and internal state coupling, enabling continuous acceleration measurement with reduced noise.

Findings

Sensitivity estimated at ~10^-7 m/s^2/Hz^1/2

System design reduces noise for improved measurement accuracy

Generalization of the system enhances robustness against external disturbances

Abstract

We propose a compact atom interferometry scheme for measuring weak, time-dependent accelerations. Our proposal uses an ensemble of dilute trapped bosons with two internal states that couple to a synthetic gauge field with opposite charges. The trapped gauge field couples spin to momentum to allow time dependent accelerations to be continuously imparted on the internal states. We generalize this system to reduce noise and estimate the sensitivity of such a system to be S~10^-7 m / s^2 / Hz^1/2.