Jaume Garriga et al JCAP01(2006)017 doi:10.1088/1475-7516/2006/01/017
Jaume Garriga1, Delia Schwartz-Perlov2, Alexander Vilenkin2 and Sergei Winitzki3
Show affiliationsInflationary cosmology leads to the picture of a 'multiverse', involving an infinite number of (spatially infinite) post-inflationary thermalized regions, called pocket universes. In the context of theories with many vacua, such as the landscape of string theory, the effective constants of Nature are randomized by quantum processes during inflation. We discuss an analytic estimate for the volume distribution of the constants within each pocket universe. This estimate is based on the conjecture that the field distribution is approximately ergodic in the diffusion regime, when the dynamics of the fields is dominated by quantum fluctuations (rather than by the classical drift). We then propose a method for determining the relative abundances of different kinds of pocket universes. Both ingredients are combined into an expression for the distribution of the constants in pocket universes of all types.
E-print Number: hep-th/0509184
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98.80.Bp Origin and formation of the Universe
Issue 01 (January 2006)
Received 29 September 2005, accepted for publication 20 December 2005
Published 19 January 2006
Jaume Garriga et al JCAP01(2006)017
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