Can Two Black Holes Merge and Reverse into Regular Matter?

[Denton]

What would the concequence of 2 black holes moved to a certain distance appart with one being say double or triple the mass of the other. Would the force (or could the force) be strong enough to warp space back so that it 'destroys' the event horision therefore returning the black hole to regular matter or whatnot.

Can you reverse a black hole?

 

[Chris Hillman]

What would the concequence of 2 black holes moved to a certain distance appart with one being say double or triple the mass of the other.

To repeat something several of us have recently had occasion to say: using a spellchecker would be a good idea.

Is your question: what would happen if two black holes, one twice the mass of the other, encounter each other at a certain initial distance and relative velocity?

The short answer is that exact solutions modeling such an event are in general hard to come by, but numerical simulations have been developed into an art form; for an authoritative discussion of simulations of black hole formation see this eprint by Stuart Shapiro and for a discussion of black hole-neutron star binaries see this eprint by Shapiro et al.

Would the force (or could the force) be strong enough to warp space back so that it 'destroys' the event horision therefore returning the black hole to regular matter or whatnot.

Event horizons are not physical surfaces and this kind of question is tricky to discuss for other reasons as well. But the short answer is that while in a close encounter between black holes their horizons become distorted, they are certainly not destroyed.

Can you reverse a black hole?

Our gold standard theory of gravitation, gtr, is a relativistic classical field theory. In this theory, once a black hole is formed, it cannot be destroyed. However, Nature adores the quantum, so it is natural to try to incorporate ideas from quantum field theories into gtr. As yet, this cannot be done rigorously, but roughly speaking there are fairly well understood but limited approximations which lead to the idea of Hawking radiation, and to the suggestion that black holes might very very slowly evaporate. It is important to understand that a stellar mass black hole would take a very long to evaporate if this suggestion turns out to be correct!

So the best short answer to your question is probably: as far as we know, no, but over very long periods (much longer than the current age of the universe), possibly yes.

 

[Entropia]

The interaction of two black holes is a complex and fascinating topic in astrophysics. When two black holes come close to each other, they will start to orbit each other and eventually merge into a single, larger black hole. This process is known as a black hole merger.

The consequence of two black holes moving to a certain distance apart with one being double or triple the mass of the other would depend on the distance between them and their relative velocities. If they are far enough apart, they may continue to orbit each other without merging. However, if they are close enough, the more massive black hole will start to pull material from the smaller one, increasing its own mass and eventually merging with it.

The force between two black holes is incredibly strong, as they have a tremendous amount of mass concentrated in a small space. However, this force is not strong enough to reverse a black hole or "destroy" its event horizon. The event horizon is the point of no return, where the escape velocity is greater than the speed of light. This means that once an object crosses the event horizon, it cannot escape, not even light. The force between two black holes is not strong enough to overcome the immense gravity of the black hole and reverse this process.

It is currently not possible to reverse a black hole or turn it back into regular matter. Black holes are considered to be one of the most mysterious and powerful objects in the universe, and our understanding of them is still limited. While there are theories and speculations about the potential for reversing a black hole, it is not something that has been observed or proven to be possible at this time.