Effect of a positive cosmological constant on cosmic strings

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dc.creatorBhattacharya, Sourav
dc.creatorLahiri, Amitabha
dc.date2008-07-03
dc.date2008-08-23
dc.date.accessioned2026-07-07T12:22:44Z
dc.date.available2026-07-07T12:22:44Z
dc.descriptionWe study cosmic Nielsen-Olesen strings in space-times with a positive cosmological constant. For the free cosmic string in a cylindrically symmetric space-time, we calculate the contribution of the cosmological constant to the angle deficit, and to the bending of null geodesics. For a cosmic string in a Schwarzschild-de Sitter space-time, we use Kruskal patches around the inner and outer horizons to show that a thin string can pierce them.
dc.descriptionv3:15pp. References and some explanations added; version accepted for publication in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0807.0543
dc.identifierhttp://arxiv.org/abs/0807.0543
dc.identifierPhys. Rev. D78 (2008) 065028
dc.identifierdoi:10.1103/PhysRevD.78.065028
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213752
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleEffect of a positive cosmological constant on cosmic strings
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