宇宙弦

非线性引力理论中整体宇宙弦的吸积

The Accretion of Global Cosmic Strings in the Nonlinear Gravitational Theory

宇宙弦和星系两点相关函数

Cosmic Strings and Two-Point Galaxy-Galaxy Correlation Function

在相关性幅度的统计误差所允许的范围内，α与N之间的关系可以在宇宙弦理论中得到解释。

Within the statistical uncertainties of the correlation amplitudes , the α - N relation can be explained well in the cosmic string model .

将其能动张量与宇宙弦（核外）的能动张量叠加，求出了中微子场背景下整体宇宙弦为源的Einstein方程的线性近似解。

Adding this tension to that of a global cosmic string outside the core , solves the linear approximate solution of Einstein equation with a global cosmic string as source and with neutrino field as background .

我们具体对具有环拓扑和具有整体单极子、宇宙弦的两类时空进行了量子化，求得了Wheeler-deWitt方程的解。

By quantizing the two kinds of space-time which has the torus-like topology or has a monopole or cosmic string , we obtained the solutions of their Wheeler-De Witt equation .

对于DBI整体宇宙弦，我们利用线性近似，计算了其单位长度质量，并发现在远离弦核处，其单位长度质量与弦半径更大的正则整体弦相似。

For DBI global cosmic sting , we calculated their mass of unit length by linear approximation , finding that in the region far away from the core of the string , its mass of unit length is similar with that of a canonical global string with larger core radius .

含温度背景下宇宙弦的引力场

The Gravitational Field of a Global Cosmic String Considering Temperature Effect

旋量场背景下宇宙弦引力场

Gravitational Field of a Global String in Spinor Field Background

辐射宇宙弦引力场中试验粒子的运动

The motion of a spinless particle in the gravitational field

宇宙弦中超导电流的磁效应

The magnetic effect for superconducting current in cosmic string

有限温度整体宇宙弦的引力场及其物质的吸积

Gravitational Field and Accreting Matter for a Global String at the Finite Temperature

绕超导宇宙弦的广义相对论性冲击波

A general relativistic shock wave around superconducting cosmic string

超导宇宙弦的引力效应

The Gravitational Effects of Superconducting Cosmic String

规范宇宙弦的引力效应

Gravitational effects of gauge cosmic strings

同时，在弱场近似下，也讨论了超导宇宙弦的引力场度规和当光线经过宇宙弦时所产生的偏折角。

Beside , we also discuss the metric of superconducting cosmic string and the defecting angle of light in weak field approximation .

本文在宇宙弦模型中，计算了各种暗物质主导宇宙的大尺度均方质量扰动和速度场。

In this paper are calculated the large scale mass fluctuations and peculiar velocity fields in cosmic string scenarios in different dark matter dominated universes .

考虑静质量为零的中微子背景，探讨背景场对整体宇宙弦核外引力场的影响。

Considering the background of massless neutrino , probes into the effect of the background field on the gravitational field of a global cosmic string outside the core .

由宇宙弦的理想气体热力学模型出发，用鞍点近似方法，导出了宇宙弦的弦张力表达式。

Based on the thermodynamic model of ideal gas of cosmic strings , the string tension is calculated by the saddle point approximation and the expression of string tension is obtained .