کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10722889 1033813 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Emergent universe from scale invariant two measures theory
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Emergent universe from scale invariant two measures theory
چکیده انگلیسی
The dilaton-gravity sector of a linear in the scalar curvature, scale invariant Two Measures Field Theory (TMT), is explored in detail in the context of closed FRW cosmology and shown to allow stable emerging universe solutions. The model possesses scale invariance which is spontaneously broken due to the intrinsic features of the TMT dynamics. We study the transition from the emerging phase to inflation, and then to a zero cosmological constant phase. We also study the spectrum of density perturbations and the constraints that impose on the parameters of the theory.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 699, Issue 4, 16 May 2011, Pages 211-216
نویسندگان
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