Transient crossing of phantom divide line w Λ = − 1 under Gauss–Bonnet interaction

2007/10/18 by Abhik Kumar Sanyal · 2 citations
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Differential geometry #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gauss–Bonnet theorem #Geometry #Imaging phantom #Luminosity distance #Mathematical analysis #Mathematical physics #Optics #Physics #Redshift #Scalar (mathematics) #Sign (mathematics) #astro-ph

paper · pdf · doi:10.1007/s10714-008-0718-1

published as Gen.Rel.Grav.41:1511-1525,2009 · 9 pages, 9 figures

arxiv created 2007/10/18 · openalex publication_date 2008/11/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Smooth double crossing of the phantom barrier w_Λ = -1 has been found possible in cosmological model with Gauss-Bonnet-scalar interaction, in the presence of background cold dark matter. Such crossing has been observed to be a sufficiently late time phenomena and independent of the sign of Gauss-Bonnet-scalar interaction. The luminosity distance versus redshift curve shows a perfect fit with the ΛCDM model up to z=3.5.

Citations

• Phantom Energy: Dark Energy withw<−1Causes a Cosmic Doomsday
• What does inflation really predict?
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Cited by

• Smooth Crossing of wΛ = −1 Line in a Single Scalar Field Model
• Early Universe in view of a modified theory of gravity