Hybrid inflation and brane–antibrane system

Hybrid inflation and brane–antibrane system
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混合膨胀和膜-反膜系统

DOI:
10.1088/1475-7516/2003/07/009
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发表时间:
2003
影响因子:
6.4
通讯作者:
A. N. Laboratory
A. N. Laboratory
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
D. Choudhury;D. Ghoshal;Dileep P. Jatkar;Sudhakar Panda Harish;A. N. Laboratory

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我们研究了一种受弦理论启发的混合膨胀模型,该模型是在膜-反膜系统的背景下,在卡拉比-丘流形(讽刺图)的紧凑子流形上部分压缩的。膜间距离充当暴胀子,而暴胀时代的结束是由快子的快速滚动带来的。 e折叠的数量足够大并且由初始条件控制。然而,慢滚参数本质上是由几何形状决定的,并且几乎没有参数依赖性。可以使原始密度波动与当前数据一致,但代价是减小弦尺度。
We study a string theory inspired model for hybrid inflation in the context of a brane–antibrane system partially compactified on a compact submanifold of (a caricature of) a Calabi–Yau manifold. The interbrane distance acts as the inflaton, whereas the end of the inflationary epoch is brought about by the rapid rolling of the tachyon. The number of e-foldings is sufficiently large and is controlled by the initial conditions. The slow roll parameters, however, are essentially determined by the geometry and have little parametric dependence. Primordial density fluctuations can be made consistent with current data at the cost of reducing the string scale.
DOI: 10.1086/377253
发表时间: 2003-09-01
影响因子: 8.7
作者:
Bennett, CL;Halpern, M;Weiland, JL
通讯作者: Weiland, JL