Kahler moduli inflation revisited

被引:27
|
作者
Blanco-Pillado, Jose J. [1 ]
Buck, Duncan [2 ]
Copeland, Edmund J. [2 ]
Gomez-Reino, Marta [3 ]
Nunes, Nelson J. [4 ]
机构
[1] Tufts Univ, Dept Phys & Astron, Inst Cosmol, Medford, MA 02155 USA
[2] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
[3] CERN, Div Theory, Dept Phys, CH-1211 Geneva 23, Switzerland
[4] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany
来源
基金
美国国家科学基金会;
关键词
Cosmology of Theories beyond the SM; Flux compactifications; LECTURES;
D O I
10.1007/JHEP01(2010)081
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We perform a detailed numerical analysis of inflationary solutions in Kahler moduli of type IIB flux compactifications. We show that there are inflationary solutions even when all the fields play an important role in the overall shape of the scalar potential. Moreover, there exists a direction of attraction for the inflationary trajectories that correspond to the constant volume direction. This basin of attraction enables the system to have an island of stability in the set of initial conditions. We provide explicit examples of these trajectories, compute the corresponding tilt of the density perturbations power spectrum and show that they provide a robust prediction of n(s) approximate to 0.96 for 60 e-folds of inflation.
引用
收藏
页数:23
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