Destroying a Black Hole?

So, for my story, I'm trying to think of a super-weapon that could destroy a stellar-mass black hole (essentially, it's a black hole merged with an Elderitch Abomination, one that really needs to be destroyed). I'm having trouble thinking of such a device.

I'm thinking maybe some sort of negative mass weapon? Shoot the singularity with negative mass to make it lighter? (of course, I suppose the problem is that it would be impossible for negative mass to even enter a black hole).

Another idea I had was somehow creating a white hole and throwing that at a black hole, but apparently, that probably wouldn't work either.

Anyone have any ideas? Other than the obvious "sit and wait for the black hole to evaporate itself forever from now".

Can't be done with science or technology. My guess is, you'll have to resort to A Wizard Did It.

Dunno about an actual scientific solution, but since black holes do eventually evaporate, a good idea would be to try and speed up the process. For safety purposes, the result may be focused in two Hawking radiation streams in place of the usual relativistic jets.

So yeah, just throw a couple of Hawking radiation resonance amplifiers over the black hole's axis poles, and let ILM do their thing.

You can always have a giant mecha split the black hole apart depending on the tone of your story. A massive physics defying laser that can destroy the black hole from inside out as if it were a physical object sounds nice and basic enough.

Negative mass could work, if you have enough available. Negative mass is attracted by positive mass (the force is repulsive, but negative mass means negative inertia), so it will fall in the black hole without problem. How it interacts with the singularity then I don't know, but assuming it merges with it and reduces its mass does not seem too outlandish.

That much negative mass matter will ultimately have a significant repulsive effect on the positive mass black hole. If you move a large negative-mass celestial body next to the black hole, it will start chasing it with devastating consequences to everything in the path. To avoid complications, you'd need to a) dispense the negative mass matter from a large number of sources in a symmetrical disposition and b) dispense it slowly enough to keep the situation under control.

Or C: stand far enough away when it happens.

Negative mass being what, antimatter? IIRC, antimatter has negative gravitational mass, but it's inertial mass is positive. Unless you're talking about something else entirely, I think that puts the kibosh on that idea...

Negative Mass is something different than Anti-matter (which is super confusing that dark matter, anti-matter, and negative matter all mean different things).

As Wikipedia puts it "Negative Mass is a hypothetical concept of matter whose mass is of opposite sign to normal matter". Negative energy's a similar hypothetical concept. My theory was that dumping negative mass into a black hole would make it have...well, less mass.

I also tried looking into the idea of pumping a black hole full of anti-matter to destroy the core of its singularity, but apparently, doing so would have no effect whatsoever.

As for a soft-science solution, that's not out of the question, (though I'd prefer to look for the harder solution before resorting to A Wizard Did It). The setting's a sci-fantasy setting, in fact (though how magic works in the setting "cast a spell on the black hole" wouldn't work, unfortunately-the black hole would just absorb a magic spell like everything else).

edited 4th Feb '16 3:54:11 PM by Protagonist506

Black holes are not really objects, they are a type of massivey curved space with a pecurliar geometry- a so-called "singularity". You can no more destroy a BH than you can destroy a point in space. True, the space is curved because of the presence of an infinitely dense mass- but the mass cannot be removed. It can evaporate away with enough time- but that's due to the underlying quantum randomeness of the universe, which cannot be manipulated.

Evil can never be permanently destroyed. The best you can to is fling the thing deep into the inter-galactic void and hope it stays there until after the heat death of the universe.

Can't adding negative mass matter (if such a thing exists) "cancel out" the mass of the singularity ?

I did some more research:

Negative Matter essentially creates a normal gravitational field rather than the anti-gravity field I was hoping for. Interestingly, negative matter's gravity does repel other negative matter, though.

Hmm... I'm not expert in physics, and I'm rather tired, so take the following with a significant dose of salt.

That said, could one not achieve the "anti-gravity" approach by positing first the existence of gravitons mediating the force of gravity, and second the existence of a "nega-graviton" that mediates a gravity of opposing sign to the standard sort? (I gather that the graviton is believed to be its own anti-particle; this "nega-graviton" is thus intended to not be a standard anti-particle, but rather to simply have opposing sign in the property of gravitational force mediated.)

edited 6th Feb '16 7:56:38 AM by ArsThaumaturgis

Gravitons would almost certainly be neutrally charged; composed of a single particle- making it basically impossible to generate an inverted version of it.

The closest thing I can think of (as contentious as this is): If you can dump a lot (A super super much) amount of charged mass into the black hole, you could potentially cause it to gain a magnetic charge- then you might be able to use a strong enough magnet to contain or repulse it.

If you just put a negative figure for the mass (regardless of how that would happen), you get the following :

• positive attracts positive
• positive attracts negative
• negative repels positive
• negative repels negative

If I'm reading you correctly, I wasn't referring to electric charge, but rather to "gravitational charge"—that is, I'm treating gravitational effect as something similar to electrical charge or magnetic pole: something with a sign, and thus, perhaps, occurring in both positive and negative forms.

Standard gravitons wouldn't be neutral in this sense since their interactions do produce a gravitational effect. It's then a matter of hypothesising a particle that has the opposite "gravitational charge", and thus the opposite effect.

edited 8th Feb '16 6:36:54 AM by ArsThaumaturgis