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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 |
Related resource: | http://dx.doi.org/10.1103/PhysRevD.52.4319 |
ISSN: | 0556-2821 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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100771.pdf | 2.38 MB | Adobe PDF | View/Open |
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