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arXiv 1111.4661gr-qcastro-ph.COhep-ph
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有效LQC中超膨胀的简单流体模型及其对CMB B模的影响

Simple fluid models for super-inflation in effective LQC and effects on the CMB B-modes

J. Ribassin, E. Huguet, K. Ganga

摘要:

圈量子宇宙学允许用一个量子反弹来取代原来的奇点,然后是一个快速膨胀的阶段,称为超级膨胀。在本文中,我们使用一个简单的解析描述的超膨胀使用状态方程的流体。然后,我们推导出所产生的张量扰动的功率谱。讨论了宇宙背景辐射对B模偏振的影响。对于相空间的一个大区域,频谱应该与标准的暴胀预测区分开来,以便于未来的观测。

英文摘要:

Loop quantum cosmology allows to replace the original singularity by a quantum bounce followed by a phase of fast expansion called super-inflation. In this paper, we use a simple analytic description of super-inflation using the equation of state of a fluid. We then derive the power spectrum of tensor perturbations produced. The effects on the B-mode polarization of the cosmological background radiation are discussed. For a large region of phase space, the spectrum should be distinguishable from the standard inflationary prediction for future observations.

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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