Título:
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Stringy cosmic strings with horizons
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Autores:
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Ruiz Ruiz, Fernando ;
Gibbons, G.W. ;
Ortiz, M.E.
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science BV, 1990-04-19
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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It is shown that any sigma model coupled to gravity with a target space having closed geodesics admits singular cosmic string solutions with event horizons. We also prove that if one makes the general assumption of boost symmetric sources, non-singular solutions of this type cannot exist. The case of the target manifold being the fundamental domain of the modular group PSL(2,¢Z) is discussed in detail.
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