First observational tests of eternal inflation: Analysis methods and WMAP 7-year results
First observational tests of eternal inflation: Analysis methods and WMAP 7-year results
In the picture of eternal inflation, our observable universe resides inside a single bubble nucleated from an inflating false vacuum. Many of the theories giving rise to eternal inflation predict that we have causal access to collisions with other bubble universes, providing an opportunity to confront these theories with observation. …