TY - JOUR
T1 - Eternal observers and bubble abundances in the landscape
AU - Vanchurin, Vitaly
AU - Vilenkin, Alexander
PY - 2006
Y1 - 2006
N2 - We study a class of "landscape" models in which all vacua have positive energy density, so that inflation never ends and bubbles of different vacua are endlessly "recycled." In such models, each geodesic observer passes through an infinite sequence of bubbles, visiting all possible kinds of vacua. The bubble abundance pj can then be defined as the frequency at which bubbles of type j are visited along the worldline of an observer. We compare this definition with the recently proposed general prescription for pj and show that they give identical results.
AB - We study a class of "landscape" models in which all vacua have positive energy density, so that inflation never ends and bubbles of different vacua are endlessly "recycled." In such models, each geodesic observer passes through an infinite sequence of bubbles, visiting all possible kinds of vacua. The bubble abundance pj can then be defined as the frequency at which bubbles of type j are visited along the worldline of an observer. We compare this definition with the recently proposed general prescription for pj and show that they give identical results.
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U2 - 10.1103/PhysRevD.74.043520
DO - 10.1103/PhysRevD.74.043520
M3 - Article
AN - SCOPUS:33747372196
SN - 1550-7998
VL - 74
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 4
M1 - 043520
ER -