Cosmological monopoles and non-Abelian black holes

被引：12

作者：

Brihaye, Yves

Hartmann, Betti ^{[1
]}

Radu, Eugen

Stelea, Cristian

机构：

[1] Int Univ Bremen, Sch Sci & Engn, D-28725 Bremen, Germany

[2] Univ Mons, Fac Sci, B-7000 Mons, Belgium

[3] Natl Univ Ireland Maynooth, Dept Math Phys, Maynooth, Kildare, Ireland

[4] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada

来源：

NUCLEAR PHYSICS B | 2007年 / 763卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/j.nuclphysb.2006.11.011

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：115 / 146

页数：32

共 60 条

[51] New hairy black-hole solutions with a dilaton potential [J].