Non-singular solutions in multidimensional model with scalar fields and exponential potential
| dc.creator | Alimi, J. -M. | |
| dc.creator | Ivashchuk, V. D. | |
| dc.creator | Melnikov, V. N. | |
| dc.date | 2005-04-11 | |
| dc.date | 2005-07-05 | |
| dc.date.accessioned | 2026-07-07T06:24:11Z | |
| dc.date.available | 2026-07-07T06:24:11Z | |
| dc.description | Using developed earlier our methods for multidimensional models \cite{M1,M2,M3} a family of cosmological-type solutions in D-dimensional model with two sets of scalar fields \vecϕ and \vecψ and exponential potential depending upon \vecϕ is considered. The solutions are defined on a product of n Ricci-flat spaces. The fields from \vecϕ have positive kinetic terms and \vecψ are "phantom" fields with negative kinetic terms. For vector coupling constant obeying 0< \vecλ^2 < (D-1)/(D-2) a subclass of non-singular solutions is singled out. The solutions from this subclass are regular for all values of synchronous "time" τ\in (- \infty, + \infty). For \vecλ^2 < 1/(D-2) we get an asymptotically accelerated and isotropic expansion for large values of τ. | |
| dc.description | 13 pages, Latex, to appear in Gravitation and Cosmology; 5 refs. are added | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0504044 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0504044 | |
| dc.identifier | Grav.Cosmol. 11 (2005) 111-115 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/96457 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Non-singular solutions in multidimensional model with scalar fields and exponential potential | |
| dc.type | text |