Not even in the examples you cited: «quantum phenomena... Radioactive decay, formation of particle pairs in a vacuum, etc.» can be described as «having the quality of being within themselves.» (religion.blogs.cnn.com)
Photons reflected back from the mirror would represent Hawking radiation — the observable effect when one half of a virtual particle pair falls into an event horizon and the other escapes. (newscientist.com)
Radioactive decay, formation of particle pairs in a vacuum, etc.. (religion.blogs.cnn.com)