Traversable wormholes from broken cosmic strings and vacuum black hole pair prodction

[Rynn]

Horowitz, Marolf, et. al show, both analytically and numerically, that you can create stable traversable wormholes in our (deSitter) universe without requiring unphysical amounts of negative stress-energy.

This particular paper uses black hole pair production mediated by a broken cosmic string.

That’s actually not exceptionally difficult to do all things considered, as those conditions generally exist shortly after the Big Bang.

In essence, this paper verified our conjecture that Weyl-forges work with microscopic black holes under exotic (early universe) conditions.

Thanks for the info sounds interesting. I had another look at the paper but again not finding it easy to extract information. Do they give a way to calculate how much energy is required for a wormhole of a given radius? If so how does it stack up to OA?