Inhomogeneous cosmologies with Q matter and varying [formula presented]
Starting from the inhomogeneous shear-free Nariai metric we show, by solving the Einstein-Klein-Gordon field equations, how a self-interacting scalar field plus a material fluid, a variable cosmological term, and a heat flux can drive the universe to its currently observed state of homogeneous accel...
Guardado en:
| Publicado: |
1999
|
|---|---|
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v60_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v60_n10_p_Chimento |
| Aporte de: |
| id |
paper:paper_15507998_v60_n10_p_Chimento |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_15507998_v60_n10_p_Chimento2023-06-08T16:21:43Z Inhomogeneous cosmologies with Q matter and varying [formula presented] Starting from the inhomogeneous shear-free Nariai metric we show, by solving the Einstein-Klein-Gordon field equations, how a self-interacting scalar field plus a material fluid, a variable cosmological term, and a heat flux can drive the universe to its currently observed state of homogeneous accelerated expansion. A quintessence scenario where power-law inflation takes place for a string-motivated potential in the late-time dominated field regime is proposed. © 1999 The American Physical Society. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v60_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v60_n10_p_Chimento |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Starting from the inhomogeneous shear-free Nariai metric we show, by solving the Einstein-Klein-Gordon field equations, how a self-interacting scalar field plus a material fluid, a variable cosmological term, and a heat flux can drive the universe to its currently observed state of homogeneous accelerated expansion. A quintessence scenario where power-law inflation takes place for a string-motivated potential in the late-time dominated field regime is proposed. © 1999 The American Physical Society. |
| title |
Inhomogeneous cosmologies with Q matter and varying [formula presented] |
| spellingShingle |
Inhomogeneous cosmologies with Q matter and varying [formula presented] |
| title_short |
Inhomogeneous cosmologies with Q matter and varying [formula presented] |
| title_full |
Inhomogeneous cosmologies with Q matter and varying [formula presented] |
| title_fullStr |
Inhomogeneous cosmologies with Q matter and varying [formula presented] |
| title_full_unstemmed |
Inhomogeneous cosmologies with Q matter and varying [formula presented] |
| title_sort |
inhomogeneous cosmologies with q matter and varying [formula presented] |
| publishDate |
1999 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v60_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v60_n10_p_Chimento |
| _version_ |
1768542195486294016 |