Brane Holes

Suppose the four dimensions of common sense are embedded within a multidimensional cosmos, then a black hole can emit a photon into the outer dimensions that would be returned to the four dimensions through something that would appear “connected by a spacelike curve.” That’s the claim of a recent paper by Valeri P. Frolov and Shinji Mukohyama, explained at an M.I.T. blog.

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