Phantom Cosmology with a Nonlinear Born - Infeld type Scalar Field
نویسنده
چکیده
Recent progress in theoretical physics suggests that the dark energy in the universe 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 accelerated expansion. The corresponding equation of state parameter lies in the range of −1 < w < − 1 3. The equation of state parameter of B-I type scalar field without potential lies in the regime of 0 ≤ w ≤ 1. 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 w < −1.
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