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arXiv 0909.1922gr-qcastro-ph.COhep-ph
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用引力波加速宇宙

Accelerating the Universe with Gravitational Waves

I. A. Brown, L. Schrempp, K. Ananda

摘要:

暴胀一般产生具有红色光谱倾斜的原始引力波。本文计算了这些引力波对宇宙膨胀的反作用。我们发现,在辐射支配下,逆反应充当相对论流体,而在物质支配下,一个小的暗能量出现状态方程w=-8/9。

英文摘要:

Inflation generically produces primordial gravitational waves with a red spectral tilt. In this paper we calculate the backreaction produced by these gravitational waves on the expansion of the universe. We find that in radiation domination the backreaction acts as a relativistic fluid, while in matter domination a small dark energy emerges with an equation of state w=-8/9.

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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