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arXiv 0705.4426astro-phgr-qc
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对数中间膨胀的动力学

Dynamics of Logamediate Inflation

John D. Barrow, N. J. Nunes

摘要:

计算了宇宙尺度因子膨胀为$a=\exp (A(\ln t)^λ)$的“对数中等”暴胀的暴胀观测量n_{s}和r,并与中等暴胀理论中的预测值进行了比较,其中$a=\exp (Bt^{f})$ .这两个版本都被证明与宇宙背景辐射的观测测量相一致。它表明,一个单一的暴胀子场的动力学可以模仿一个系统的几个字段以类似的方式创建的辅助幂律膨胀领域的联合演变。

英文摘要:

A computation of the inflationary observables n_{s} and r is made for `logamediate' inflation where the cosmological scale factor expands as $a=\exp (A(\ln t)^λ)$, and is compared to their predicted values in the intermediate inflationary theory, where $a=\exp (Bt^{f})$. Both versions prove to be consistent with observational measurements of the cosmic background radiation. It is shown that the dynamics of a single inflaton field can be mimicked by a system of several fields in an analogous manner to that created by the joint evolution of the fields in assisted power-law inflation.

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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