Branes and inflationary cosmology

被引:53
作者
Kyae, B [1 ]
Shafi, Q [1 ]
机构
[1] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
关键词
D O I
10.1016/S0370-2693(02)01156-5
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We discuss a brane based inflationary scenario in which an initially non-supersymmetric configuration involving a D4 brane is dynamically transformed into a supersymmetric one in. a background space-time geometry determined by a stack of D6 branes. Inflation is realized in the effective four-dimensional theory and ends after reaching a stable BPS configuration. The scalar spectral index turns out to be 0.98. Under some simplifying assumption the reheat temperature, Hubble constant and the string scale are estimated to be of order 10(8) GeV, 10(12) GeV and 10(16) GeV, respectively. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码:379 / 387
页数:9
相关论文
共 23 条
[1]  
ALEXANDER S, HEPTH0105032
[2]  
BRODIE JH, HEPTH0101115
[3]   Four-year COBE normalization of inflationary cosmologies [J].
Bunn, EF ;
Liddle, AR ;
White, M .
PHYSICAL REVIEW D, 1996, 54 (10) :R5917-R5921
[4]   The inflationary brane-antibrane universe [J].
Burgess, CP ;
Majumdar, M ;
Nolte, D ;
Quevedo, F ;
Rajesh, G ;
Zhang, RJ .
JOURNAL OF HIGH ENERGY PHYSICS, 2001, (07) :XXLVII-19
[5]   WORLDSHEET APPROACH TO HETEROTIC INSTANTONS AND SOLITONS [J].
CALLAN, CG ;
HARVEY, JA ;
STROMINGER, A .
NUCLEAR PHYSICS B, 1991, 359 (2-3) :611-634
[6]   WORLDBRANE ACTIONS FOR STRING SOLITONS [J].
CALLAN, CG ;
HARVEY, JA ;
STROMINGER, A .
NUCLEAR PHYSICS B, 1991, 367 (01) :60-82
[7]  
DEBERNARDIS P, ASTROPH0105296
[8]   Brane inflation [J].
Dvali, G ;
Tye, SHH .
PHYSICS LETTERS B, 1999, 450 (1-3) :72-82
[9]   Infrared hierarchy, thermal brane inflation and superstrings as superheavy dark matter [J].
Dvali, G .
PHYSICS LETTERS B, 1999, 459 (04) :489-496
[10]  
DVALI GR, HEPTH0105203