RECONSTRUCTING A STRING-INSPIRED NONMINIMALLY COUPLED QUINTOM MODEL

被引：24

作者：

Setare, M. R. ^{[1
]}

Sadeghi, J. ^{[2
]}

Amani, A. R. ^{[3
]}

机构：

[1] Payame Noor Univ, Dept Sci, Bijar, Iran

[2] Mazandaran Univ, Dept Phys, Fac Sci, Babol Sar, Iran

[3] Islamic Azad Univ, Dept Phys, Ayatollah Amoli Branch, Amol, Iran

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2009年 / 18卷 / 08期

关键词：

Quintom model; tachyonic Lagrangian; dark energy; nonminimal coupling; DARK ENERGY CONSTRAINTS; PROBE WMAP OBSERVATIONS; EQUATION-OF-STATE; COSMOLOGICAL CONSTANT; EVOLUTION; CONSEQUENCES; SUPERNOVAE; INFLATION; UNIVERSE; RELEASE;

D O I：

10.1142/S0218271809015096

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by the recent work of Zhang and Chen,(1) we generalize their work to the nonminimally coupled case. We consider a quintom model of dark energy with a single scalar field T given by a Lagrangian inspired by a tachyonic Lagrangian in string theory. We consider nonminimal coupling of the tachyon field to the scalar curvature, and then we reconstruct this model in the light of three forms of parametrization for dynamical dark energy.

引用

页码：1291 / 1301

页数：11

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