High-frequency gravitational waves detection with the BabyIAXO haloscopes

TL;DR

This paper explores the use of RADES-BabyIAXO cavities as novel detectors for high-frequency gravitational waves, achieving sensitivities of 10^{-21} and 10^{-20} in different frequency ranges, with potential breakthroughs in axion and gravitational wave physics.

Contribution

First analysis demonstrating RADES-BabyIAXO cavities as effective HFGW detectors with specific sensitivity estimates across two frequency ranges.

Findings

Cavity 1 sensitive at 252.8 - 333.2 MHz with strain sensitivity ~10^{-21}

Cavity 2 sensitive at 2.504 - 3.402 GHz with strain sensitivity ~10^{-20}

Set-up can advance axion physics and HFGW detection simultaneously.

Abstract

We present the first analysis using RADES-BabyIAXO cavities as detectors of high-frequency gravitational waves (HFGWs). In particular, we discuss two configurations for distinct frequency ranges of HFGWs: Cavity 1, mostly sensitive at a frequency range of 252.8 - 333.2 MHz, and Cavity 2, at 2.504 - 3.402 GHz, which is a scaled down version of Cavity 1. We find that Cavity 1 will reach sensitivity to strains of the HFGWs of order $h_1\sim 10^{-21}$, while Cavity 2 will reach $h_2\sim 10^{-20}$. These represent the best estimations of the RADES-BabyIAXO cavities as HFGWs detectors, showing how this set-up can produce groundbreaking results in axion physics and HFGWs simultaneously.