Chameleon mechanism with a new potential

Abstract

Chameleon scalar field is a new model, which introduced to provide a mechanism for exhibiting accelerating universe. Chameleon field has several interesting aspects, such as field dependence on the local matter density. For this model we introduce a new kind of potential which has run away form and satisfies chameleon constraints. The results are acceptable in comparison with the other potentials which studied up to now.

5 pages, 3 figures

References in corpus (5)

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• A New Model of Agegraphic Dark Energy
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• Constraining chameleon field driven warm inflation with Planck 2018 data
• Generalized second law of thermodynamics in scalar-tensor gravity
• Early evolution of fully convective stars in scalar-tensor gravity
• Cooling process of substellar objects in scalar-tensor gravity
• On the holographic dark energy in chameleon scalar-tensor cosmology
• Non-local scalar fields inflationary mechanism in light of Planck $2013$
• Comments on ${}^{"}$Cosmic evolution in Brans-Dicke chameleon cosmology${}^{"}$