Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12306
Title: Semiclassical back reaction in the formation of a straight cosmic string
Author: Campos, Antonio
Martín Menéndez, Rosario
Verdaguer Oms, Enric, 1950-
Keywords: Astrofísica
Relativitat general (Física)
Gravitació
Models de corda
Teoria de camps (Física)
Astrophysics
General relativity (Physics)
Gravitation
String models
Field theory (Physics)
Issue Date: 1995
Publisher: The American Physical Society
Abstract: We derive the back reaction on the gravitational field of a straight cosmic string during its formation due to the gravitational coupling of the string to quantum matter fields. A very simple model of string formation is considered. The gravitational field of the string is computed in the linear approximation. The vacuum expectation value of the stress tensor of a massless scalar quantum field coupled to the string gravitational field is computed to one loop order. Finally, the back-reaction effect is obtained by solving perturbatively the semiclassical Einsteins equations.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.52.4319
It is part of: Physical Review D, 1995, vol. 52, núm. 8, p. 4319-4336
URI: http://hdl.handle.net/2445/12306
ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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