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http://repositoriodigital.ipn.mx/handle/123456789/11448Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | QUIROS, ISRAEL | - |
| dc.date | 2012-03-28T22:54:11Z | - |
| dc.date | 2012-03-28T22:54:11Z | - |
| dc.date | 2010-10-08 | - |
| dc.date.accessioned | 2013-01-16T15:31:03Z | - |
| dc.date.available | 2013-01-16T15:31:03Z | - |
| dc.date.issued | 2013-01-16 | - |
| dc.identifier | 1361-6382 | - |
| dc.identifier | http://hdl.handle.net/123456789/975 | - |
| dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/11448 | - |
| dc.description | We investigate in detail the asymptotic properties of tachyon cosmology for a broad class of self-interaction potentials. The present approach relies on an appropriate re-definition of the tachyon field, which, in conjunction with a method formerly applied in the bibliography in a different context allows us to generalize the dynamical systems study of tachyon cosmology to a wider class of self-interaction potentials beyond the (inverse) square-law one. It is revealed that independent of the functional form of the potential, the matter-dominated solution and the ultra-relativistic (also matter-dominated) solution are always associated with equilibrium points in the phase space of the tachyon models. The latter is always the past attractor, while the former is a saddle critical point. For inverse power-law potentials V ∝ φ−2λ the late-time attractor is always the de Sitter solution, while for sinh-like potentials V ∝ sinh−α(λφ), depending on the region of parameter space, the late-time attractor can be either the inflationary tachyon-dominated solution or the matter-scaling (also inflationary) phase. In general, for most part of known quintessential potentials, the late-time dynamics will be associated either with de Sitter inflation, or with matter-scaling, or with scalar field-dominated solutions. | - |
| dc.language | en | - |
| dc.publisher | CLASSICAL AND QUANTUM GRAVITY | - |
| dc.title | A STUDY OF TACHYON DYNAMICS FOR BROAD CLASSES OF POTENTIALS | - |
| dc.type | Article | - |
| Aparece en las colecciones: | Doctorado | |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| 13Quiros_2010.pdf | 40.4 kB | Adobe PDF | Visualizar/Abrir |
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