naima
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Hi PF
Is there a way to see if a spin foam contains a black hole?
Is there a way to see if a spin foam contains a black hole?
This question is a bit like "Is there a way to see if a Feynman diagram contains a hydrogen atom?" In quantum field theory a typical history of the world is not a single Feynman diagram but a superposition of many Feynman diagrams. Similarly, we how that in loop quantum gravity a history of the world is not a particular spin foam but a quantum superposition of many spin foams. We do not yet know how to tell if such a superposition describes, or contains, a black hole.Hi PF
Is there a way to see if a spin foam contains a black hole?
Yes, according to the "Mathematical Universe Hypothesis" of Mark Tegmark, as all possible mathematial universes are equally realized. Even if this is not possible, you can easily make any statement true, for example by choosing another axiomatization of mathematics.Hi PF
Is there a way to see if a spin foam contains a black hole?