1995/12/15 by Alexander Vilenkin, Vilenkin, Alexander
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #astro-ph #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/9512031
12 pages; talk given at the RESCEU Symposium, Tokyo, Nov. 1995
arxiv created 1995/12/15 · arxiv updated 2009/11/30
In models where the constants of Nature can take more than one set of values, the cosmological wave function ψ describes an ensemble of universes with different values of the constants. The probability distribution for the constants can be determined with the aid of the `principle of mediocrity' which asserts that we are a `typical' civilization in this ensemble. I discuss the implications of this approach for inflationary scenarios, the origin of density fluctuations, and the cosmological constant.