| Charged Black Cosmic String (2008) | |||||||||||||||
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| 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. PACS number(s): 11.27.+d, 04.40-b, 04.70.Bw Keywords: Global vortex; Black hole; Cosmic string Cosmic strings are viable extended objects in cosmology [1]. A way to understand basic physical ingredients of cosmic strings is to study a straight string along an axis, which reduces one spatial dimension. Then, the (2+1) dimensional correspondence is the particlelike solitonic excitations so-called vortices in curved spacetime, and the conic space due to massive point source is enough for the descrip... | |||||||||||||||
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