{
  "id": "gr-qc/0504044",
  "version": "v2",
  "published": "2005-04-11T14:04:10.000Z",
  "updated": "2005-07-05T13:24:18.000Z",
  "title": "Non-singular solutions in multidimensional model with scalar fields and exponential potential",
  "authors": [
    "J. -M. Alimi",
    "V. D. Ivashchuk",
    "V. N. Melnikov"
  ],
  "comment": "13 pages, Latex, to appear in Gravitation and Cosmology; 5 refs. are added",
  "journal": "Grav.Cosmol. 11 (2005) 111-115",
  "categories": [
    "gr-qc",
    "hep-th"
  ],
  "abstract": "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 \\vec{\\phi} and \\vec{\\psi} and exponential potential depending upon \\vec{\\phi} is considered. The solutions are defined on a product of n Ricci-flat spaces. The fields from \\vec{\\phi} have positive kinetic terms and \\vec{\\psi} are \"phantom\" fields with negative kinetic terms. For vector coupling constant obeying 0< \\vec{\\lambda}^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\" \\tau \\in (- \\infty, + \\infty). For \\vec{\\lambda}^2 < 1/(D-2) we get an asymptotically accelerated and isotropic expansion for large values of \\tau.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-07-05T13:24:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "scalar fields",
      "non-singular solutions",
      "exponential potential",
      "multidimensional model",
      "vector coupling constant"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 680279
    }
  }
}