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arXiv 0710.4609hep-thastro-phgr-qchep-ph
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膜膨胀中宇宙超弦的能量辐射

Energy Radiation by Cosmic Superstrings in Brane Inflation

Hassan Firouzjahi

摘要:

本文研究了弯曲膜暴胀模型中宇宙D弦圈能量损失的主要方法。结果表明,Ramond-Ramond场辐射的能量损失比引力波辐射的能量损失要大许多个数量级。这两种能量损失机制的比例取决于暴胀的能量尺度、弦论的质量尺度以及它是单喉暴胀还是多喉暴胀。这可能对不久的将来宇宙超弦的探测产生重要影响。我们认为,来自宇宙微波背景各向异性和大爆炸核合成的束缚是制约宇宙超弦网络物理参数的主要宇宙学来源,而基于引力波的实验的作用可能是次要的。

英文摘要:

The dominant method of energy loss by a loop of cosmic D-strings in models of warped brane inflation is studied. It is shown that the energy loss via Ramond-Ramond field radiation can dominate by many orders of magnitude over the energy radiation via gravitational wave emission. The ratio of these two energy loss mechanisms depends on the energy scale of inflation, the mass scale of string theory and whether it is a single-throat or a multi-throat inflationary scenario. This can have important consequences for the detection of cosmic superstrings in the near future. It is argued that the bounds from cosmic microwave background anisotropies and big bang nucleosynthesis are the dominant cosmological sources to constrain the physical parameters of the network of cosmic superstrings, whereas the role of the gravitational wave-based experiments may be secondary.

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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