While normal black holes can reach sizes of billions of solar masses, quantum black holes are microscopic, comparable in size to elementary particles.
A typical black hole is an object with a singularity in the center that is surrounded by an event horizon. But what about quantum black holes also known as mini black holes or micro black holes?
Quantum Black Holes are hypothetical tiny black holes. Stephen Hawking predicted them in 1971. According to him they aren’t that black and evaporate with time.
These micro black holes are microscopic, comparable in size to elementary particles but they are unimaginably hot. While the core of our Sun is at about 15,000,000 Kelvin – to get close to the temperature of a micro black hole you would need to add another 42 zeroes. And that’s truly unimaginable.
Because of quantum effects, micro black holes would evaporate almost infinitely fast.
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Their expected lifetime is around one octillionth of a nanosecond. They pop out of existence as soon as they are born.
It is possible that micro black holes were created during the big bang, or maybe through subsequent phase transitions.
However, they are just a theory for now. But even if they exist they don’t have the potential to pose a threat to our planet or destroy stars.
These tiny black holes could help us better understand space-time and whether it has unseen higher dimensions.
Astrophysicists may observe them through the particles they are expected to emit by Hawking radiation.