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Would an antimatter black hole shrink when absorbing regular matter, or is the mass of the photons from the annihilation process the same as the mass of the ann
by hhjinks 6y ago
Would an antimatter black hole shrink when absorbing regular matter, or is the mass of the photons from the annihilation process the same as the mass of the annihilated particles? How would that work? Would annihilation even happen under such extreme conditions?
- hpoe 6y agoWhen anti-matter enters a black hole it shrinks the mass of the black hole. This is how blackholes emit Hawking radiation.
- bashinator 6y agoYou're confusing antimatter with virtual particle pairs.
- marcosdumay 6y agoMatter annihilation conserves the energy (and as consequence, the mass) of the particles that were destroyed.
- kadoban 6y agoAdding antimatter to a matter black hole (don't think it matters actually, but this seems to be the case in question) should increase the mass and size, not decrease. Correct, the photons produced from annihilation should match the inputs. To decrease you'd need to add negative mass or negative energy, which aren't things we've found to exist yet. We don't actually know _what_ will happen in the singularity of a black hole, to answer the question of if annihilation will happen there. As far as I know we don't have any model of what happens in a singularity.