arXiv 1408.65162014-08-27physics.gen-phgr-qc

根据Plank和BICEP2在LQC中热快子暴胀的标量扰动

Scalar perturbation in warm tachyon inflation in LQC in light of Plank and BICEP2

M. R. Setare, V. Kamali

备注：: 15 pages. arXiv admin note: substantial text overlap with arXiv:1302.0493, arXiv:1407.2604
DOI：: 10.1016/j.physletb.2014.10.006

摘要：

在圈量子宇宙学的有效场论背景下研究了温快子暴胀宇宙模型。在慢滚近似下，计算了该模型的原始扰动谱。我们还得到了张量标量比、标量谱指数的一般表达式。我们利用指数势发展了该模型，并详细计算了该模型的特性。模型参数受Planck、WMAP9和BICEP2观测资料的限制。

英文摘要：

We study warm-tachyon inflationary universe model in the context of the effective field theory of loop quantum cosmology. In slow-roll approximation the primordial perturbation spectrums for this model are calculated. We also obtain the general expressions of the tensor-to-scalar ratio, scalar spectral index. We develop this model by using exponential potential, the characteristics of this model is calculated in great details. The parameters of the model are restricted by recent observational data from Planck, WMAP9 and BICEP2.

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