87 citations · 239 across the 3 of their papers we have counts for
4 papers · 1 filter
Prediction and explanation in the multiverse
Jaume Garriga, Alexander Vilenkin
Probabilities in the multiverse can be calculated by assuming that we are typical representatives in a given reference class. But is this class well defined? What should be include…
Can infrared gravitons screen ?
Jaume Garriga, Takahiro Tanaka
It has been suggested that infrared gravitons in de Sitter space may lead to a secular screening of the effective cosmological constant. This seems to clash with the naive expectat…
Eternal inflation, bubble collisions, and the persistence of memory
Jaume Garriga, Alan H. Guth, Alexander Vilenkin
A ``bubble universe'' nucleating in an eternally inflating false vacuum will experience, in the course of its expansion, collisions with an infinite number of other bubbles. In an…
Smooth ``creation'' of an open universe in five dimensions
Jaume Garriga
We present a non-singular instanton describing the creation of an open universe with a compactified extra dimension. The four dimensional section of this solution is a singular ins…