Warped Wilson line DBI inflation
Warped Wilson line DBI inflation
复制标题
扭曲的威尔逊线 DBI 通胀
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
I. Zavala
中科院分区：
文献类型：
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作者：
A. Avgoustidis;I. Zavala
我们提出了一个新的暴胀的弦理论的情况下，暴胀场是一个威尔逊线自由度的世界体积的探测DP膜，在一个弯曲的通量紧致。D-膜世界体积上Wilson线场的动力学项具有非标准的DBI形式。因此，我们在DBI通货膨胀的框架内工作。这扩展了原来的慢滚威尔逊线暴胀的情况下，只有二次片被认为是。扭曲DBI威尔逊线膨胀提供了一个有吸引力的替代普通（位置场）DBI膨胀，因为观测和理论约束得到相当放松。除了DBI场景中的标准大非高斯性之外，还可以实现可观测的引力波。
We propose a novel inflationary scenario in string theory in which the inflaton field is a Wilson line degree of freedom in the worldvolume of a probe Dp-brane, in a warped flux compactification. Kinetic terms for Wilson line fields on the world volume of a D-brane take a nonstandard Dirac-Born-Infeld (DBI) form. Thus, we work in the framework of DBI inflation. This extends the original slow roll Wilson line inflationary scenario, where only the quadratic piece was considered. Warped DBI Wilson line inflation offers an attractive alternative to ordinary (position field) DBI inflation, inasmuch as observational and theoretical constraints get considerably relaxed. Besides the standard large non-Gaussianities in DBI scenarios, it is also possible to achieve an observable amount of gravitational waves.
影响因子：
8.7
作者：
Komatsu, E.;Smith, K. M.;Wright, E. L.
通讯作者：
Wright, E. L.