标题： 带电黑洞宇宙弦 显示英文标题

标题： Charged Black Cosmic String

摘要： 研究了反德西特时空中的具有圆柱对称性的全局U(1)弦。根据负宇宙学常数的大小，它们形成规则的全局宇宙弦、极值黑洞宇宙弦和带电黑洞宇宙弦，但没有曲率奇异性。通过对偶变换澄清了中性全局弦的拓扑荷与黑洞荷之间的关系。简要讨论了其作为直弦的物理相关性。 显示英文摘要

摘要： Global U(1) strings with cylindrical symmetry are studied in anti-de Sitter spacetime. According as the magnitude of negative cosmological constant, they form regular global cosmic strings, extremal black cosmic strings and charged black cosmic strings, but no curvature singularity is involved. The relationship between the topological charge of a neutral global string and the black hole charge is clarified by duality transformation. Physical relevance as straight string is briefly discussed.