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arXiv · hep-th/0512120

A Comparison of Quintessence and Nonlinear Born-Infeld Scalar Field Using Gold Supernova data

Wei Fang·H. Q. Lu·B. Li·K. F Zhang
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Abstract

We study the Non-Linear Born-Infeld(NLBI) scalar field model and quintessence model with two different potentials($V(ϕ)=-sϕ$ and ${1/2}m^2ϕ^2$). We investigate the differences between those two models. We explore the equation of state parameter w and the evolution of scale factor $a(t)$ in both NLBI scalar field and quintessence model. The present age of universe and the transition redshift are also obtained. We use the Gold dataset of 157 SN-Ia to constrain the parameters of the two models. All the results show that NLBI model is slightly superior to quintessence model.

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Wei Fang, H. Q. Lu, B. Li, K. F Zhang. 2005-12-21. A Comparison of Quintessence and Nonlinear Born-Infeld Scalar Field Using Gold Supernova data. https://doi.org/10.1142/s0218271806009194

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