Black Holes as Quantum Computers: Neutrino Technosignatures from Hawking Radiation

To the point

Gia Dvali and Zaza Osmanov propose that extraterrestrial civilizations could build many microscopic black holes as quantum computers, whose Hawking radiation would emit neutrinos detectable on Earth by IceCube, providing a new way to search for life beyond Earth.

Extraterrestrial Intelligence: quantum computing with black holes
mpg.de

Extraterrestrial Intelligence: quantum computing with black holes

Black holes as quantum computers? Sounds like science fiction, but it is a realistic scenario. No other system stores quantum information as efficiently as black holes. It is therefore conceivable that intelligent extraterrestrial civilizations could use them for their information processing. These quantum computers would emit neutrinos and light particles that we could detect on Earth. These are the central theses of a scientific paper by Gia Dvali, director at the Max Planck Institute for Physics (MPP), and Zaza Osmanov of the Free University of Tbilisi, Georgia.