Artículo
Unified phantom cosmologies
Fecha de publicación:
12/2005
Editorial:
World Scientific
Revista:
International Journal of Modern Physics D
ISSN:
0218-2718
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a general algorithm based on the concept of form-invariance which can be used for generating phantom cosmologies. It involves linear transformations between the kinetic energy and the potential of the scalar field, and transforms solutions of the Einstein-Klein-Gordon equations which preserve the weak energy condition into others which violate it, while keeping the energy density of the field positive. Several known solutions representing phantom cosmologies are unified by this procedure. Using the general algorithm we obtain those solutions and show the relations between them. In addition, the scale factors of the product and seed solutions are related by a generalization of the well-known a → a-1 duality. © World Scientific Publishing Company.
Palabras clave:
Duality
,
Phantom Fields
,
Symmetry Transformations
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Chimento, Luis Pascual; Lazkoz, Ruth; Unified phantom cosmologies; World Scientific; International Journal of Modern Physics D; 14; 3-4; 12-2005; 587-598
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