Dual atomic interferometer with a tunable point of minimum magnetic sensitivity

TL;DR

This paper presents a dual atomic interferometer that achieves tunable minimum magnetic sensitivity by combining two rubidium transitions, allowing control over magnetic sensitivity at adjustable magnetic fields.

Contribution

It introduces a novel method to tune the magnetic sensitivity minimum in atomic interferometers by combining two transitions and controlling their populations.

Findings

Achieved tunable magnetic sensitivity minimum between 2.2 and 3.2 G.

Demonstrated independent evolution of two interferometers.

Controlled magnetic sensitivity via microwave pulse manipulation.

Abstract

Atomic interferometers are often affected by magnetic field fluctuations. Using the clock transition at zero magnetic field minimizes the effect of these fluctuations. There is another transition in rubidium that minimizes the magnetic sensitivity at 3.2 G.We combine the previous two transitions to obtain minimum magnetic sensitivity at a tunable magnetic field between 2.2 and 3.2 G. The two interferometers evolve independently from each other and we control the magnetic sensitivity by changing the population in both transitions with a microwave pulse.