The observational position of simple non-minimally coupled inflationary scenarios

The observational position of simple non-minimally coupled inflationary scenarios
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简单非最小耦合通货膨胀情景的观测位置

DOI:
10.1088/1475-7516/2014/09/052
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发表时间:
2014
影响因子:
6.4
通讯作者:
Edwards D
Edwards D
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Edwards D

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我们考虑了两类非最小耦合的膨胀模型:一类是膨胀子与重力的二次耦合模型,另一类是万能吸引子模型,其中耦合与势有关。在后一种情况下,我们对吸引子的结构进行了详细的分析,确定了吸引子从Starobinsky点的移位,并确定了逼近吸引子的条件。然后,我们评估了在BICEP2实验检测到B模偏振的不同解释下模型的可行性,发现在B模大多具有原始起源的情况下,非最小耦合受到很强的限制。
We consider two classes of non-minimally coupled inflation models; those with a quadratic coupling of the inflaton to gravity, and theUniversal Attractor'models where the coupling is connected to the potential. We make a detailed analysis of the attractor structure in the latter case, identifying a shift of the attractor from the Starobinsky point and determining conditions for approach to the attractor. We then assess the viability of the models under different interpretations of the BICEP2 experiment's detection of B-mode polarisation, finding strong constraints on the non-minimal coupling in the case where the B-modes have mostly primordial origin.
DOI: 10.1103/physrevlett.112.241101
发表时间: 2014-06-19
影响因子: 8.6
作者:
Ade, P. A. R.;Aikin, R. W.;Yoon, K. W.
通讯作者: Yoon, K. W.