182 citations · 485 across the 6 of their papers we have counts for
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Future Foam
Raphael Bousso, Ben Freivogel, Yasuhiro Sekino +4
We study pocket universes which have zero cosmological constant and non-trivial boundary topology. These arise from bubble collisions in eternal inflation. Using a simplified dust…
Boltzmann babies in the proper time measure
Raphael Bousso, Ben Freivogel, I-Sheng Yang
After commenting briefly on the role of the typicality assumption in science, we advocate a phenomenological approach to the cosmological measure problem. Like any other theory, a…
TASI Lectures on the Cosmological Constant
Raphael Bousso
The energy density of the vacuum, Lambda, is at least 60 orders of magnitude smaller than several known contributions to it. Approaches to this problem are tightly constrained by d…
Landscape Predictions from Cosmological Vacuum Selection
Raphael Bousso, I-Sheng Yang
In BP models with hundreds of fluxes, we compute the effects of cosmological dynamics on the probability distribution of landscape vacua. Starting from generic initial conditions,…
Predicting the Cosmological Constant from the Causal Entropic Principle
Raphael Bousso, Roni Harnik, Graham D. Kribs +1
We compute the expected value of the cosmological constant in our universe from the Causal Entropic Principle. Since observers must obey the laws of thermodynamics and causality, t…
Adventures in de Sitter space
Raphael Bousso
This is my contribution to the Festschrift honoring Stephen Hawking on his 60th birthday. Twenty-five years ago, Gibbons and Hawking laid out the semi-classical properties of de Si…