Asymptotic cosmological regimes in scalar-torsion gravity with a perfect fluid

被引：13

作者：

Skugoreva, Maria A. ^{[1
]}

Toporensky, Alexey V. ^{[1
,2
]}

机构：

[1] Kazan Fed Univ, Kremlevskaya 18, Kazan 420008, Russia

[2] Lomonosov Moscow State Univ, Sternberg Astron Inst, Univ Sky Prospectus 13, Moscow 119991, Russia

来源：

EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

Scalar Field; Effective Potential; Einstein Frame; Asymptotic Regime; Torsion Theory;

D O I：

10.1140/epjc/s10052-016-4190-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We consider the cosmological dynamics of a non-minimally coupled scalar field in scalar-torsion gravity in the presence of hydrodynamical matter. The potential of the scalar field have been chosen as power law with negative index, this type of potentials is usually used in quintessence scenarios. We identify several asymptotic regimes, including de Sitter, kinetic dominance, kinetic tracker, and tracker solutions and study the conditions for their existence and stability. We show that for each combination of coupling constant and potential power index one of the regimes studied in the present paper is stable to the future.

引用

页数：7

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