Matter-wave cavity gravimeter

TL;DR

This paper introduces a novel matter-wave gravimeter using a Bose-Einstein condensate in a resonant cavity with Raman pulses, achieving increased sensitivity through multiple cycles and transverse confinement.

Contribution

It presents a new design for a matter-wave gravimeter utilizing a resonant cavity and Raman pulses, enhancing sensitivity and stability analysis.

Findings

Sensitivity increases with the number of cycles

Transverse confinement achieved via spherical wave-fronts

Analogy with a resonator in momentum space

Abstract

We propose a gravimeter based on a matter-wave resonant cavity loaded with a Bose-Einstein condensate and closed with a sequence of periodic Raman pulses. The gravimeter sensitivity increases quickly with the number of cycles experienced by the condensate inside the cavity. The matter wave is refocused thanks to a spherical wave-front of the Raman pulses. This provides a transverse confinement of the condensate which is discussed in terms of a stability analysis. We develop the analogy of this device with a resonator in momentum space for matter waves.