الغابة الراديوية الجاذبية: كيف تكشف مطيافية الهيدروجين الكمومية عن المادة المظلمة ✛ ✦

الملخص الأصلي

كما كتبه المؤلفون، بالإنجليزية arXiv:2605.13042v1

We propose a novel gravitational signature to detect Primordial Black Hole (PBH) dark matter by treating interstellar hydrogen as a quantum sensor for spacetime curvature. Focusing on H II regions, we demonstrate that the Riemann tidal tensor of an \emph{asteroid-mass} PBH induces a symmetric splitting of the $$2P_{3/2}$$ state in bound hydrogen atoms. This relativistic effect redistributes $$9.9\,\mathrm{GHz}$$ absorption line into a gravitational spectral radio forest with a bandwidth $$\sim 2\,\mathrm{GHz}$$. By accounting for active accretion of Hydrogen atoms and the resulting density-squared emission measure within the Bondi radius, we find a relatively enhanced absorption spectrum. This feature presents a concrete, high-contrast target for upcoming radio-surveys to constrain PBH populations in the dark matter sector.