Tiny Black Holes Rip Atoms Apart ⚡ экспресс
Primordial black holes (PBHs) with asteroid-like masses could be dark matter, but they are nearly impossible to detect. A new study shows that their tidal forces—immense differences in gravity over tiny distances—can rip electrons from atoms and even shatter atomic nuclei, for instance by breaking apart deuterons or causing heavy nuclei to fission. For PBHs in certain mass ranges, this effect outshines Hawking radiation, especially right after the recombination era. This opens up a novel search method: tracking the gravitational “scars” left on matter.
Tiny black holes, the size of an atom but heavier than an asteroid, were born right after the Big Bang. Now, they are probably the dark matter — the invisible mass that keeps galaxies from flying apart. You can't catch them directly: they emit almost nothing.
But their gravity tears hydrogen like soft taffy — one side of the atom gets pulled harder than the other, and it bursts. Flashes from these ruptures are sought in the ancient radio waves left over from the era 380,000 years after the Big Bang.
The most unexpected surprise: these black holes can even shatter deuterium nuclei. That changed the chemical composition of the early Universe — and perhaps exactly such a trace will point to the nature of dark matter. Such a search method might have surprised George Gamow and Ralph Alpher, who laid the foundations of cosmic chemistry.
🎯 A black hole with the mass of an asteroid but smaller than an atom tears apart a deuterium nucleus — a hydrogen isotope — with tidal force, and this changed the chemical makeup of the early Universe.