Patching up the No-Boundary Proposal with virtual Euclidean wormholes

@inproceedings{Bousso1998PatchingUT,
title={Patching up the No-Boundary Proposal with virtual Euclidean wormholes},
author={Raphael Bousso and Andrew Chamblin},
year={1998}
}

In quantum cosmology, one often considers tunneling phenomena which may have occurred in the early universe. Processes requiring quantum penetration of a potential barrier include black hole pair creation and the decay of vacuum domain walls. Ideally, one calculates the rates for such processes by finding an instanton, or Euclidean solution of the field equations, which interpolates between the initial and final states. In practice, however, it has become customary to calculate such amplitudes… CONTINUE READING