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arXiv · hep-th/0312082

Cosmology with a Nonlinear Born-Infeld type Scalar Field

H. Q. Lu
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Abstract

Recent many physicists suggest that the dark energy in the universe might result from the Born-Infeld(B-I) type scalar field of string theory. The universe of B-I type scalar field with potential can undergo a phase of accelerating expansion. The corresponding equation of state parameter lies in the range of $\displaystyle -1<ω<-{1/3}$. The equation of state parameter of B-I type scalar field without potential lies in the range of $0\leqω\leq1$. We find that weak energy condition and strong energy condition are violated for phantom B-I type scalar field. The equation of state parameter lies in the range of $ω<-1$.

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H. Q. Lu. 2005-03-01. Cosmology with a Nonlinear Born-Infeld type Scalar Field. https://doi.org/10.1142/s021827180500513x

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