64 citations · 79 across the 5 of their papers we have counts for
4 papers · 1 filter
On the origin of the particles in black hole evaporation
Ralf Schützhold, William G. Unruh
We present an analytic derivation of Hawking radiation for an arbitrary (spatial) dispersion relation as a model for ultra-high energy deviations from general covariance. It…
Large Universe as the initial condition for a Collapsing Universe
Daniel Green, W. G. Unruh
Using the extension of the standard Hawking-Hartle prescription for defining a wave function for the universe, we show that it is possible, given a suitable form for the scalar fie…
Complex Paths and the Hartle Hawking Wave-function for Slow Roll Cosmologies
W. G. Unruh, Moninder Jheeta
A large set of complex path solutions for the Hartle Hawking semi-classical wave function are found for an inflationary universe in the "slow roll" regime. The implication of these…
On the Hawking Turok solution to the Open Universe wave function
W. Unruh
Hawking and Turok have recently published a solution to the WKB "wave-function for the universe" which they claim leads in a natural way to an open universe as the end point of the…