Cosmic superstring trajectories in warped compactifications

被引:4
|
作者
Avgoustidis, Anastasios [1 ]
Chadburn, Sarah [2 ]
Gregory, Ruth [2 ,3 ]
机构
[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
[2] Univ Durham, Ctr Particle Theory, Durham DH1 3LE, England
[3] Perimeter Inst, Waterloo, ON N2L 2Y5, Canada
来源
PHYSICAL REVIEW D | 2012年 / 86卷 / 06期
基金
英国工程与自然科学研究理事会;
关键词
GRAVITATIONAL-RADIATION; STRING EVOLUTION; INFLATION; COSMOLOGY; SPECTRUM; DYNAMICS; FLUX;
D O I
10.1103/PhysRevD.86.063516
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We explore the generic motion of cosmic (super)strings with warped internal dimensions. We find no dynamical mechanism that localizes the string at the tip of the throat, but rather that the motion has both internal and external degrees of freedom. We present some numerical simulations using the Klebanov-Strassler solution as an explicit sample throat geometry. The results indicate that cosmic (super) strings formed by inflationary brane-antibrane annihilation can have sufficient internal motion for the gravitational wave signals from the string network to be suppressed relative to the signal from a "standard" cosmic string network.
引用
收藏
页数:14
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