Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2445/12306

Semiclassical back reaction in the formation of a straight cosmic string
Campos, Antonio; Martín Menéndez, Rosario; Verdaguer Oms, Enric, 1950-
Universitat de Barcelona
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.
11-05-2010
Astrofísica
Relativitat general (Física)
Gravitació
Models de corda
Teoria de camps (Física)
Astrophysics
General relativity (Physics)
Gravitation
String models
Field theory (Physics)
(c) The American Physical Society, 1995
Artículo
The American Physical Society
         

Mostrar el registro completo del ítem

Documentos relacionados