Artículo
Abstract:
We illustrate how form-invariance transformations can be used for constructing phantom cosmologies from standard scalar field universes. First we discuss how to relate two flat Friedmann-Robertson-Walker cosmologies with different barotropic indexes [Formula presented] and [Formula presented]. Then we consider the particular case [Formula presented], and we show that, if the matter content is interpreted in terms of self-interacting scalar fields, then the corresponding transformation provides the link between a standard and a phantom cosmology. After that, we illustrate the method by considering models with exponential potentials. Finally, we also show that the mentioned duality persists even if the typical brane-world modifications to the Friedmann equation are considered. © 2003 The American Physical Society.
Registro:
| Documento: | Artículo |
| Título: | Constructing phantom cosmologies from standard scalar field universes |
| Autor: | Chimento, L.P.; Lazkoz, R. |
| Filiación: | Departamento de Física Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, Buenos Aires, 1428, Argentina Fisika Teorikoa eta Zientziaren Historia Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, Posta Kutxatila, 644 48080, Spain |
| Palabras clave: | Cosmic rays; Equations of state of liquids; Mathematical models; Mathematical transformations; Relativity; Phantom cosmologies; Standard scalar field universes; Astrophysics |
| Año: | 2003 |
| Volumen: | 91 |
| Número: | 21 |
| DOI: | http://dx.doi.org/10.1103/PhysRevLett.91.211301 |
| Título revista: | Physical Review Letters |
| Título revista abreviado: | Phys Rev Lett |
| ISSN: | 00319007 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v91_n21_p_Chimento |
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Citas:
---------- APA ----------
Chimento, L.P. & Lazkoz, R. (2003) . Constructing phantom cosmologies from standard scalar field universes. Physical Review Letters, 91(21).http://dx.doi.org/10.1103/PhysRevLett.91.211301
---------- CHICAGO ----------
Chimento, L.P., Lazkoz, R. "Constructing phantom cosmologies from standard scalar field universes" . Physical Review Letters 91, no. 21 (2003).http://dx.doi.org/10.1103/PhysRevLett.91.211301
---------- MLA ----------
Chimento, L.P., Lazkoz, R. "Constructing phantom cosmologies from standard scalar field universes" . Physical Review Letters, vol. 91, no. 21, 2003.http://dx.doi.org/10.1103/PhysRevLett.91.211301
---------- VANCOUVER ----------
Chimento, L.P., Lazkoz, R. Constructing phantom cosmologies from standard scalar field universes. Phys Rev Lett. 2003;91(21).http://dx.doi.org/10.1103/PhysRevLett.91.211301
