Is vacuum decay a black hole?

The Unruh vacuum decay rate is exponentially smaller than the decay rate of the Hartle-Hawking state, though both rates become unsuppressed at high enough black hole temperature….Black hole induced false vacuum decay from first principles.

Comments:	80 pages, 18 figures, v2: references added, matches the published version
DOI :	10.1007/JHEP11(2021)197

What happens to a black hole in a vacuum?

But contrary to popular myth, a black hole is not a cosmic vacuum cleaner. To be “sucked” into a black hole, one has to cross inside the Schwarzschild radius. At this radius, the escape speed is equal to the speed of light, and once light passes through, even it cannot escape.

What happens after vacuum decay?

When the vacuum decay happens, a bubble of universe with new laws of physics is formed, which expands outwards at the speed of light as the vacuum around it decays to the new, more stable state.

What happens inside black holes?

And in general relativity, strong enough centrifugal forces act like antigravity: they push, not pull. This creates a boundary inside the black hole, called the inner horizon. Outside this region, radiation is falling inward towards the singularity, compelled by the extreme gravitational pull.

Will false vacuum decay happen?

In quantum field theory, a false vacuum is a hypothetical vacuum that is stable, but not in the most stable state possible (it is metastable). It may last for a very long time in that state, but could eventually decay to the more stable state, an event known as false vacuum decay.

Is Universe unstable?

Brian Cox says universe ‘isn’t as stable as we believe’ in 2017. A true vacuum is the stable, lowest-energy state, while a false vacuum suggests the universe is somewhat, but not entirely, stable – known to scientists as “metastable”.

Could a black hole trigger vacuum decay?

But there’s another possibility. A couple years ago, a group of physicists, Philipp Burda, Ruth Gregory, and Ian Moss, calculated that black holes could also trigger vacuum decay (you can see the paper here ).

What is false vacuum in quantum mechanics?

In quantum field theory, a false vacuum is a hypothetical vacuum that is stable, but not in the most stable state possible (it is metastable). It may last for a very long time in that state, but could eventually decay to the more stable state, an event known as false vacuum decay.

What would happen if there was a vacuum in space?

Because the true vacuum is more stable than the false one, the transition would spread, creating a bubble of true vacuum within our space that would expand at the speed of light in all directions. This is called vacuum decay, and it’s suuuuper fatal.

What is vacuum decay and how dangerous is it?

This is called vacuum decay, and it’s suuuuper fatal. A diagram from Coleman & de Luccia 1980 showing a false vacuum (right-hand-side valley) and a true vacuum (left-hand-side valley).