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arXiv 0705.1657hep-th
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四维超引力的P项势

P-term Potentials from 4-D Supergravity

C. Burrage, A. C. Davis

摘要:

p项暴胀出现在一些膜暴胀模型中。在N=2的超对称中,标量势包含一个费耶特-伊利奥普洛斯(FI)项$ξ_i$的矢量。根据这个向量的方向,有可能得到D项和F项通货膨胀或这些模型的混合。在本文中,我们审查的问题,嵌入的P-项模型在超引力,并显示如何解决这些问题,考虑截断从N=2理论N=1。我们表明,与一个简单的规范的标量位可以包括F-长期或D-长期的部分,但不是两者兼而有之。测量可以改变,使得包含FI常数的F项和D项都可以包括在内。在所有情况下,我们都显示了暴胀轨迹,如果它存在,还显示了超对称极小值。

英文摘要:

P-term inflation arises in some models of brane inflation. Within N=2 supersymmetry the scalar potential contains a vector of Fayet-Iliopoulos (FI) terms $ξ_i$. Depending on the direction of this vector it is possible to get D-term and F-term inflation or a mix of these models. In this paper we review the problems of embedding the P-term model in supergravity and show how these can be solved by considering the truncation from an N=2 theory to N=1. We show that with a simple gauging the scalar potential can include F-term or D-term parts but not both. The gauging can be altered so that both F-terms and D-terms containing FI constants can be included. In all cases we display the inflationary trajectory and, if it exists, the supersymmetric minimum.

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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