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| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.provenance | Facultad de Ciencias Exactas y Naturales de la UBA | - |
| dc.contributor | <div class="autor_fcen" id="1852">Chimento, L.P.</div> | - |
| dc.contributor | <div class="autor_fcen" id="7253">Richarte, M.G.</div> | - |
| dc.creator | <div class="autor_fcen" id="1852">Chimento, L.P.</div> | - |
| dc.creator | <div class="autor_fcen" id="7253">Richarte, M.G.</div> | - |
| dc.date.accessioned | 2018-05-04T22:08:09Z | - |
| dc.date.accessioned | 2018-05-28T15:48:47Z | - |
| dc.date.available | 2018-05-04T22:08:09Z | - |
| dc.date.available | 2018-05-28T15:48:47Z | - |
| dc.date.issued | 2010 | - |
| dc.identifier.uri | http://10.0.0.11:8080/jspui/handle/bnmm/68559 | - |
| dc.description | We study a k-essence field evolving linearly with the cosmic time and the atypical k-essence model on a homogeneous and isotropic flat 3-brane. We show that the k-field is driven by an inverse quadratic polynomial potential. The solutions represent expanding, contracting or bouncing universes with a finite time span and some of them end in a big crunch or a big rip. Besides, by selecting the extended tachyonic kinetic functions we analyze the high and low energy limits of our model, obtaining the nearly power law solution. We introduce a tachyon field with negative energy density and show that the universe evolves between two singularities. © 2010 IOP Publishing Ltd. | - |
| dc.description | Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. | - |
| dc.description | Fil:Richarte, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | http://creativecommons.org/licenses/by/2.5/ar | - |
| dc.source | J. Phys. Conf. Ser. 2010;229 | - |
| dc.source.uri | http://digital.bl.fcen.uba.ar/Download/paper/paper_17426588_v229_n_p_Chimento.pdf | - |
| dc.subject | Big Crunch | - |
| dc.subject | Finite time | - |
| dc.subject | Kinetic functions | - |
| dc.subject | Low-energy limit | - |
| dc.subject | Negative energy density | - |
| dc.subject | Power law | - |
| dc.subject | Quadratic polynomial | - |
| dc.subject | Tachyon fields | - |
| dc.subject | Control equipment | - |
| dc.subject | Relativity | - |
| dc.title | K-essence and extended tachyons in brane-worlds | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:ar-repo/semantics/artículo | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| Aparece en las colecciones: | FCEN - Facultad de Ciencias Exactas y Naturales. UBA | |
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