کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10723156 | 1033832 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On climbing scalars in String Theory
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: On climbing scalars in String Theory On climbing scalars in String Theory](/preview/png/10723156.png)
چکیده انگلیسی
In string models with “brane supersymmetry breaking” exponential potentials emerge at (closed-string) tree level but are not accompanied by tachyons. Potentials of this type have long been a source of embarrassment in flat space, but can have interesting implications for Cosmology. For instance, in ten dimensions the logarithmic slope |Vâ²/V| lies precisely at a “critical” value where the Lucchin-Matarrese attractor disappears while the scalar field is forced to climb up the potential when it emerges from the Big Bang. This type of behavior is in principle perturbative in the string coupling, persists after compactification, could have trapped scalar fields inside potential wells as a result of the cosmological evolution and could have also injected the inflationary phase of our Universe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 694, Issue 1, 25 October 2010, Pages 80-88
Journal: Physics Letters B - Volume 694, Issue 1, 25 October 2010, Pages 80-88
نویسندگان
E. Dudas, N. Kitazawa, A. Sagnotti,