摘要
超导电流的磁场改变了弦外引力场的度规,使弦外时空表现为相对磁导率为μ(r)的磁介质,并使经过弦附近的光线发生偏拆。
The magnetic field of superconducting current in cosmic string changes the external metric of the string. It also makes the external spacetime of the string simulating a kind of magnetic medium with permeability μ(r), and the light rays will be deflected when they pass the region near by the string.
关键词
宇宙学
宇宙弦
引力效应
cosmology-cosmic string-gravitational effects
