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dc.contributor.author
Chimento, Luis Pascual
dc.contributor.author
Lazkoz, Ruth
dc.date.available
2019-04-12T14:55:26Z
dc.date.issued
2005-12
dc.identifier.citation
Chimento, Luis Pascual; Lazkoz, Ruth; Unified phantom cosmologies; World Scientific; International Journal of Modern Physics D; 14; 3-4; 12-2005; 587-598
dc.identifier.issn
0218-2718
dc.identifier.uri
http://hdl.handle.net/11336/74218
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
World Scientific
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Duality
dc.subject
Phantom Fields
dc.subject
Symmetry Transformations
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Unified phantom cosmologies
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-27T18:17:27Z
dc.journal.volume
14
dc.journal.number
3-4
dc.journal.pagination
587-598
dc.journal.pais
Singapur
dc.journal.ciudad
Singapur
dc.description.fil
Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Lazkoz, Ruth. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia; España
dc.journal.title
International Journal of Modern Physics D
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1142/S021827180500616X
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