English

Dynamics of Logamediate Inflation

Astrophysics 2008-11-26 v2 General Relativity and Quantum Cosmology

Abstract

A computation of the inflationary observables n_{s} and r is made for `logamediate' inflation where the cosmological scale factor expands as a=exp(A(lnt)λ)a=\exp (A(\ln t)^{\lambda}), and is compared to their predicted values in the intermediate inflationary theory, where a=exp(Btf)a=\exp (Bt^{f}). Both versions prove to be consistent with observational measurements of the cosmic background radiation. It is shown that the dynamics of a single inflaton field can be mimicked by a system of several fields in an analogous manner to that created by the joint evolution of the fields in assisted power-law inflation.

Keywords

Cite

@article{arxiv.0705.4426,
  title  = {Dynamics of Logamediate Inflation},
  author = {John D. Barrow and N. J. Nunes},
  journal= {arXiv preprint arXiv:0705.4426},
  year   = {2008}
}
R2 v1 2026-06-21T08:33:25.433Z