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arXiv 1102.1777astro-ph.COgr-qc
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推广非正则动力学项的暗物质、暗能量和暴胀统一模型

Generalizing a Unified Model of Dark Matter, Dark Energy, and Inflation with Non Canonical Kinetic Term

Josue De-Santiago, Jorge L. Cervantes-Cota

摘要:

研究了一个具有非正则动力学项的单标量场的暗能量、暗物质和暴胀统一模型。在这个模型中,拉格朗日的动力学项解释了暗物质和暗能量,在早期,二次势解释了慢卷暴胀。本工作是Bose和Majumdar [1]工作的扩展,Chimento在[2]中提出了更一般的动力学项。我们证明了该模型是可行的背景和线性扰动水平。

英文摘要:

We study a unification model for dark energy, dark matter, and inflation with a single scalar field with non canonical kinetic term. In this model the kinetic term of the Lagrangian accounts for the dark matter and dark energy, and at early epochs a quadratic potential accounts for slow roll inflation. The present work is an extension to the work by Bose and Majumdar [1] with a more general kinetic term that was proposed by Chimento in [2]. We demonstrate that the model is viable at the background and linear perturbation levels.

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