Anthropic Distribution for Cosmological Constant and Primordial Density Perturbations

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dc.creatorGraesser, Michael L.
dc.creatorHsu, Stephen D. H.
dc.creatorJenkins, Alejandro
dc.creatorWise, Mark B.
dc.date2004-07-21
dc.date2004-09-29
dc.date.accessioned2026-07-07T04:17:13Z
dc.date.available2026-07-07T04:17:13Z
dc.descriptionThe anthropic principle has been proposed as an explanation for the observed value of the cosmological constant. Here we revisit this proposal by allowing for variation between universes in the amplitude of the scale-invariant primordial cosmological density perturbations. We derive a priori probability distributions for this amplitude from toy inflationary models in which the parameter of the inflaton potential is smoothly distributed over possible universes. We find that for such probability distributions, the likelihood that we live in a typical, anthropically-allowed universe is generally quite small.
dc.description12 pages, 2 tables. v3: Replaced to match published version (minor corrections of form)
dc.identifierhttps://arxiv.org/abs/hep-th/0407174
dc.identifierhttp://arxiv.org/abs/hep-th/0407174
dc.identifierPhys.Lett. B600 (2004) 15-21
dc.identifierdoi:10.1016/j.physletb.2004.08.061
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/52665
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleAnthropic Distribution for Cosmological Constant and Primordial Density Perturbations
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