The overshoot problem and giant structures

被引:17
作者
Itzhaki, Nissan [1 ]
机构
[1] Tel Aviv Univ, IL-69978 Ramat Aviv, Israel
关键词
Cosmology of Theories beyond the SM; Flux compactifications;
D O I
10.1088/1126-6708/2008/10/061
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
Models of small-field inflation often suffer from the overshoot problem. A particularly efficient resolution to the problem was proposed recently in the context of string theory. We show that this resolution predicts the existence of giant spherically symmetric overdense regions with radius of at least 110 Mpc. We argue that if such structures will be found they could offer an experimental window into string theory.
引用
收藏
页数:15
相关论文
共 53 条
[1]   Instability of dark energy with mass-varying neutrinos [J].
Afshordi, N ;
Zaldarriaga, M ;
Kohri, K .
PHYSICAL REVIEW D, 2005, 72 (06)
[2]   COSMOLOGY FOR GRAND UNIFIED THEORIES WITH RADIATIVELY INDUCED SYMMETRY-BREAKING [J].
ALBRECHT, A ;
STEINHARDT, PJ .
PHYSICAL REVIEW LETTERS, 1982, 48 (17) :1220-1223
[3]   MSSM at direction inflation: slow roll, stability fine-tuning and reheating [J].
Allahverdi, Rouzbeh ;
Enqvist, Kari ;
Garcia-Bellido, Juan ;
Jokinen, Asko ;
Mazumdar, Anupam .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2007, (06)
[4]   MODULAR COSMOLOGY [J].
BANKS, T ;
BERKOOZ, M ;
SHENKER, SH ;
MOORE, G ;
STEINHARDT, PJ .
PHYSICAL REVIEW D, 1995, 52 (06) :3548-3562
[5]   Stabilizing the dilaton in superstring cosmology [J].
Barreiro, T ;
de Carlos, B ;
Copeland, EJ .
PHYSICAL REVIEW D, 1998, 58 (08)
[6]   Moduli stabilization in brane gas cosmology with superpotentials [J].
Berndsen, A ;
Biswas, T ;
Cline, JM .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2005, (08) :207-232
[7]   CANDIDATES FOR THE INFLATION FIELD IN SUPERSTRING MODELS [J].
BINETRUY, P ;
GAILLARD, MK .
PHYSICAL REVIEW D, 1986, 34 (10) :3069-3083
[8]   Initial conditions for brane inflation [J].
Brandenberger, R ;
Geshnizjani, G ;
Watson, S .
PHYSICAL REVIEW D, 2003, 67 (12)
[9]   Cosmological stabilization of moduli with steep potentials [J].
Brustein, R ;
de Alwis, SP ;
Martens, P .
PHYSICAL REVIEW D, 2004, 70 (12) :126012-1
[10]   CHALLENGES FOR SUPERSTRING COSMOLOGY [J].
BRUSTEIN, R ;
STEINHARDT, PJ .
PHYSICS LETTERS B, 1993, 302 (2-3) :196-201