What am I thinking about... 'particles' that pop in and out of of our universe?

Bliss

New member
Sorry if it's a bit fuzzy, but my memory is not very good.

So it tells that there small 'particles' (not sure what they are) that randomly pop in and out of the universe in pairs - anywhere at any time. When a such occurs at the right distance from a black hole, one of the 'particles' can be pulled in while the other is not.

Do you know what I'm thinking about (vaguely)? And do you have any more information on the topic, like what happens when the whole black whole scenario occurs?
 
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