کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1852983 1528823 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inflationary paradigm after Planck 2013
ترجمه فارسی عنوان
پارادایم تورم پس از پلانک 2013
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
چکیده انگلیسی

Models of cosmic inflation posit an early phase of accelerated expansion of the universe, driven by the dynamics of one or more scalar fields in curved spacetime. Though detailed assumptions about fields and couplings vary across models, inflation makes specific, quantitative predictions for several observable quantities, such as the flatness parameter (Ωk=1−ΩΩk=1−Ω) and the spectral tilt of primordial curvature perturbations (ns−1=dln⁡PR/dln⁡kns−1=dln⁡PR/dln⁡k), among others—predictions that match the latest observations from the Planck satellite to very good precision. In the light of data from Planck as well as recent theoretical developments in the study of eternal inflation and the multiverse, we address recent criticisms of inflation by Ijjas, Steinhardt, and Loeb. We argue that their conclusions rest on several problematic assumptions, and we conclude that cosmic inflation is on a stronger footing than ever before.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 733, 2 June 2014, Pages 112–119
نویسندگان
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