64 citations · 79 across the 5 of their papers we have counts for
4 papers · 1 filter
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…
Cosmological long wavelength perturbations
W. Unruh
This paper presents an exact solution to the long wavelength perturbations for the scalar modes and for a scalar field theory with arbitrary potential. Locally these modes are coor…
Minimum Inaccuracy for Traversal-Time
J. Oppenheim, B. Reznik, W. G. Unruh
Using various model clocks it has been shown that the time-of-arrival cannot be measured more accurately than 1/E where E is the kinetic energy of a free particle. However, this re…