Smooth Crossing of wΛ = −1 Line in a Single Scalar Field Model

2007/10/31 by Abhik Kumar Sanyal, A. K. Sanyal
Physics and Astronomy · #Algorithm #Black Holes and Theoretical Physics #Computer science #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Physics #astro-ph

paper · pdf · doi:10.1155/2009/612063

published as Adv.High Energy Phys.2009:612063,2009 · 9 pages, 6 figures

arxiv created 2007/12/18 · openalex publication_date 2009/01/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Smooth double crossing of the phantom divide line w Λ = −1 has been found possible with a single minimally coupled scalar field for the most simple form of generalized k ‐essence cosmological model, in the presence of background cold dark matter. Such crossing is a sufficiently late time transient phenomenon and does not have any pathological behaviour.

Citations

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