کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1842887 1527835 2007 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cosmological monopoles and non-Abelian black holes
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Cosmological monopoles and non-Abelian black holes
چکیده انگلیسی

We discuss magnetic monopole solutions of the Einstein–Yang–Mills–Higgs equations with a positive cosmological constant. These configurations approach asymptotically the de Sitter spacetime background and exist only for a nonzero Higgs potential. We find that the total mass of the solutions within the cosmological horizon is finite. However, their mass evaluated by using the surface counterterm method outside the cosmological horizon at early/late time infinity generically diverges. Magnetic monopole solutions with finite mass and non-integer charge exist however in a truncation of the theory with a vanishing Higgs field. Both solutions with a regular origin and cosmological black holes are studied, special attention being paid to the computation of the global charges.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 763, Issues 1–2, 12 February 2007, Pages 115–146
نویسندگان
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