کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10725131 1034086 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effective potential in curved space and cut-off regularizations
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Effective potential in curved space and cut-off regularizations
چکیده انگلیسی
We consider derivation of the effective potential for a scalar field in curved space-time within the physical regularization scheme, using two sorts of covariant cut-off regularizations. The first one is based on the local momentum representation and Riemann normal coordinates and the second is operatorial regularization, based on the Fock-Schwinger-DeWitt proper-time representation. We show, on the example of a self-interacting scalar field, that these two methods produce equal results for divergences, but the first one gives more detailed information about the finite part. Furthermore, we calculate the contribution from a massive fermion loop and discuss renormalization group equations and their interpretation for the multi-mass theories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 705, Issue 3, 11 November 2011, Pages 273-278
نویسندگان
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