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arXiv 1206.2589gr-qcastro-ph.COhep-phhep-th
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暗能量与暗物质相互作用的双标量场模型

Two-scalar-field model for the interaction of dark energy and dark matter

Orfeu Bertolami, Pedro Carrilho, Jorge Páramos

摘要:

本文通过一个势为$V(ϕ,χ)=e^{-λϕ}P(ϕ,χ)$的双标量场模型研究了暗物质与暗能量相互作用的效应,其中$P(ϕ,χ)$是一个多项式.我们表明,宇宙的膨胀动力学的宇宙再现了大范围的裸质量的暗物质领域,并存在解决方案与瞬态加速膨胀。的潜在的指数行为的修改进行了研究,具有重要的物理意义,包括更现实的瞬态加速解决方案的可能性。

英文摘要:

In this paper, we study the effects of an interaction between dark matter and dark energy through a two scalar field model with a potential $V(ϕ,χ)=e^{-λϕ}P(ϕ,χ)$, where $P(ϕ,χ)$ is a polynomial. We show that the cosmic expansion dynamics of the Universe is reproduced for a large range of the bare mass of the dark matter field and that there exist solutions with transient accelerated expansion. A modification in the exponential behavior of the potential is studied, with important physical implications, including the possibility of more realistic transient acceleration solutions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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