Assisted inflation via tachyon condensation

被引：261
作者：
Mazumdar, A [1 ]
Panda, S
Pérez-Lorenzana, A
机构：
[1] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy
[2] Harish Chandra Res Inst, Allahabad 211019, Uttar Pradesh, India
[3] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico
来源：
NUCLEAR PHYSICS B | 2001年 / 614卷 / 1-2期
关键词：
D O I：
10.1016/S0550-3213(01)00410-2
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：
In this paper we propose a new mechanism of inflating the Universe with non-BPS D4-branes which decay into stable D3-branes via tachyon condensation. In a single brane scenario the tachyon potential is very steep and unable to support inflation. However, if the universe lives in a stack of branes produced by a set of noninteracting unstable D4-branes, then the associated set of tachyons. may drive inflation along our 3 spatial dimensions. After tachyon condensation the Universe is imagined to be filled with a set of parallel stable D3-branes. We study the scalar density perturbations and reheating within this setup. (C) 2001 Elsevier Science B.V. All rights reserved.
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收藏
页码：101 / 116
页数：16
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