Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

When a black hole evaporates, does it turn all the matter that has fallen in directly to energy, or will it somehow throw back out the same kind of matter (normal or anti) that went in?

share|improve this question
    
Related: physics.stackexchange.com/questions/20905/… –  David Z Mar 5 '12 at 19:53
    
Black holes have no hair: en.m.wikipedia.org/wiki/No-hair_theorem so they don't remember what fell in. –  Manishearth Mar 6 '12 at 5:06
    
If you're hoping to jump into a black hole, examine it, and hawking-radiate yourself out, my advice is to abandon your research now ;P –  Manishearth Mar 6 '12 at 5:08

1 Answer 1

up vote 3 down vote accepted

Black hole has no knowledge of what kind of matter went in. As long as it went in it disappeared in the black hole. To create particles, it needs to fulfill conservation laws, which is not easy and black hole produces generally photons. However, take into account that evaporation of a black hole is extremely slow. For a black hole of reasonable size this time far exceeds universe lifetime.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.