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A natural way out of the conflict between cosmic strings and inflation
Institution:1. University of Michigan, Department of Climate and Space Sciences and Engineering, 2455 Hayward St., Ann Arbor, MI 48109, USA;2. Rice University, Physics and Astronomy Department, 6100 Main MS-61, Houston, Texas 77005, USA;1. Dpto. Astrofísica y Física de la Atmósfera, Facultad de Física, Universidad Complutense de Madrid, Ciudad Universitaria s/n. 28040, Madrid, Spain;2. Dpto. Matemática Aplicada, E. de Ingeniería Informática, Universidad de Valladolid, Pza, Alto de los Leones, 1. 40005 Segovia, Spain;3. Instituto de Ciencias Ambientales, Universidad de Castilla-La Mancha, Avda, Carlos III s/n. 45071, Toledo, Spain;4. Agencia Estatal de Meteorología, Leonardo Prieto Castro, 8. 28040 Madrid, Spain;1. A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia;2. V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia;3. Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia;1. Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain;2. Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Abstract:The phase transition which produces cosmic strings is studied in curved spacetime. It is shown that cosmic string formation naturally takes place in the late inflationary stage if the string-forming scalar field is appropriately coupled with the spacetime curvature. As a result the cosmic string scenario of galaxy formation turns out to be compatible with inflation.
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