Reply to the comment on ''Quantum sensor networks as exotic field telescopes for multi-messenger astronomy''

Abstract

The comment by Stadnik [arXiv:2111.14351v1] claims that "back-action", i.e. interaction of exotic low-mass fields (ELF) with ordinary matter, "prevents the multi-messenger astronomy on human timescales." We strongly disagree with this blanket claim. This is {\em not a general conclusion}, as Stadnik's statement entirely relies on a specific sign of the ELF-matter interaction. As we demonstrate, there are coupling constant ranges when, in fact, the screening effects are irrelevant. In addition, the delay between the arrival of the ELF and gravitational wave bursts is reduced by the ELF-ordinary matter interaction, improving the discovery reach of our proposed novel, exotic physics, modality in multi-messenger astronomy.