Single arm interferometry to probe the scalar field dark matter

TL;DR

This paper proposes using a single arm interferometer with squeezed light to detect interactions between photons and scalar dark matter, offering a new method to constrain dark matter parameters.

Contribution

It introduces a novel interferometry technique involving squeezing operations to detect scalar dark matter interactions with photons.

Findings

Interaction causes observable deviations in light state

Single arm interferometer can constrain dark matter parameters

Method offers a new detection approach for scalar dark matter

Abstract

We analyse the interaction of photons with a scalar dark matter field \phi and we propose to use a single arm interferometer to reveal this interaction and constrain the parameters of the scalar dark matter model. By considering a beam of coherent light and two spatially separated squeezing operations, we show that the interaction of photons with scalar dark matter leads to an observable deviation in the outgoing light state, with respect to free evolution. Therefore the single arm interferometer may yield a novel revelation method for scalar dark matter.