COSMIC-STRING EVOLUTION - A NUMERICAL-SIMULATION

被引：441

作者：

ALLEN, B

SHELLARD, EPS

机构：

[1] MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139

[2] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.64.119

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A system of intercommuting cosmic strings is numerically evolved in a homogeneous radiation-dominated expanding universe. Further evidence for the existence of a eescalingee solution is presented, and results for the long-string energy density are given. Long strings exhibit significant small-scale structuree"kinks and short-wavelength propagating modes. Net loop production is observed to be strongly peaked at scales considerably smaller than the horizon, and reasons for this severe fragmentation are briefly discussed. The new numerical techniques employed are also described. © 1990 The American Physical Society.

引用

页码：119 / 122

页数：4

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