On the cosmological relevance of the tachyon

被引：147

作者：

Choudhury, D ^{[1
]}

Ghoshal, D ^{[1
]}

Jatkar, DP ^{[1
]}

Panda, S ^{[1
]}

机构：

[1] Harish Chandra Res Inst, Allahabad 211019, Uttar Pradesh, India

来源：

PHYSICS LETTERS B | 2002年 / 544卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(02)02512-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyse of the effective action of the tachyon field on a D-brane, of both bosonic as well as superstring theory. We find that the non-standard kinetic term of the tachyon field requires a correction to the Born-Infeld type Lagrangian. The cosmological significance of the resulting dynamics is explored. We also examine if the rolling tachyon can provide an effective cosmological constant and contrast its behaviour with quintessence. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：231 / 238

页数：8

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