D-term inflation

被引：372

作者：

Binetruy, P ^{[1
]}

Dvali, G ^{[1
]}

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA,SWITZERLAND

来源：

PHYSICS LETTERS B | 1996年 / 388卷 / 02期

关键词：

D O I：

10.1016/S0370-2693(96)01083-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that inflation which is dominated by the D-term density avoids the 'slow-roll' problem of inflation in supergravity. Such an inflationary scenario can naturally emerge in theories with non-anomalous or anomalous U(1) gauge symmetry. In the latter case the scale of inflation is fixed by the Green-Schwarz mechanism of anomaly cancellation. The crucial point is that the (super)gravity-mediated curvature of all the scalar fields (and, in particular, of the inflaton), which in the standard F-dominated case is of the order of the Hubble parameter, is absent in the D-term inflation case. The curvature of moduli and of all other flat directions during such an inflation crucially depends on their gauge charges.

引用

页码：241 / 246

页数：6

共 37 条

[1] NATURAL INFLATION - PARTICLE PHYSICS MODELS, POWER-LAW SPECTRA FOR LARGE-SCALE STRUCTURE, AND CONSTRAINTS FROM THE COSMIC BACKGROUND EXPLORER [J].