TL;DR
This paper explores the modified Chaplygin gas as a cosmological model, examining its properties, observational constraints, and connections to scalar and tachyonic fields to understand its role in the universe's evolution.
Contribution
It reevaluates the relationship between modified Chaplygin gas and scalar fields, including potential construction and the role of tachyonic fields in cosmology.
Findings
Constraints on model parameters from observations
Reevaluation of scalar field potentials
Analysis of tachyonic field roles in cosmology
Abstract
Modified Chaplygin gas as an exotic fluid has been introduced in [34]. Essential features of the modified Chaplygin gas as a cosmological model are discussed. Observational constraints on the parameters of the model have been included. The relationship between the modified Chaplygin gas and a homogeneous minimally coupled scalar field are reevaluated by constructing its self-interacting potential. In addition, we study the role of the tachyonic field in the modified Chaplygin gas cosmological model and the mapping between scalar field and tachyonic field is also considered.
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