Aspects of tachyonic inflation with an exponential potential

被引:215
作者
Sami, M
Chingangbam, P
Qureshi, T
机构
[1] Jamia Millia Islamia, Dept Phys, New Delhi 110025, India
[2] Jamia Millia Islamia, Dept Phys, New Delhi 110025, India
来源
PHYSICAL REVIEW D | 2002年 / 66卷 / 04期
关键词
D O I
10.1103/PhysRevD.66.043530
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We consider issues related to tachyonic inflation with an exponential potential. We find an exact solution of the evolution equations in the slow roll limit in FRW cosmology. We also carry out a similar analysis in the case of brane assisted tachyonic inflation. We investigate the phase space behavior of the system and show that the dustlike solution is a late time attractor. The difficulties associated with reheating in the tachyonic model are also indicated.
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页数:5
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共 48 条
[1]   Inflation from D-(D)over-bar brane annihilation [J].
Alexander, SHS .
PHYSICAL REVIEW D, 2002, 65 (02)
[2]   INFLATIONARY STAGES IN COSMOLOGICAL MODELS WITH A SCALAR FIELD [J].
BELINSKY, VA ;
GRISHCHUK, LP ;
KHALATNIKOV, IM ;
ZELDOVICH, YB .
PHYSICS LETTERS B, 1985, 155 (04) :232-236
[3]  
BENAOUM HB, HEPTH0205140
[4]  
CHOUDHURY D, HEPTH0204204
[5]   Cosmological expansion in the presence of an extra dimension [J].
Cline, JM ;
Grojean, C ;
Servant, G .
PHYSICAL REVIEW LETTERS, 1999, 83 (21) :4245-4248
[6]   Steep inflation: Ending braneworld inflation by gravitational particle production [J].
Copeland, EJ ;
Liddle, AR ;
Lidsey, JE .
PHYSICAL REVIEW D, 2001, 64 (02)
[7]   Exponential potentials and cosmological scaling solutions [J].
Copeland, EJ ;
Liddle, AR ;
Wands, D .
PHYSICAL REVIEW D, 1998, 57 (08) :4686-4690
[8]   A resolution of the cosmological singularity with orientifolds [J].
Cornalba, L ;
Costa, MS ;
Kounnas, C .
NUCLEAR PHYSICS B, 2002, 637 (1-3) :378-394
[9]   Cosmology of one extra dimension with localized gravity [J].
Csáki, C ;
Graesser, M ;
Kolda, C ;
Terning, J .
PHYSICS LETTERS B, 1999, 462 (1-2) :34-40
[10]  
FAIRBAIRN M, HEPTH0204070