文献类型：期刊文献

英文题名：Primordial black holes and cosmic string loop

作者：Cheng, HB; Li, XZ

机构：[1]E CHINA UNIV SCI & TECHNOL,SCH SCI,SHANGHAI 200237,PEOPLES R CHINA;[2]SHANGHAI TEACHERS UNIV,DEPT PHYS,SHANGHAI 200234,PEOPLES R CHINA

年份：1996

卷号：13

期号：4

起止页码：317

外文期刊名：CHINESE PHYSICS LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:A1996UM28200020)】；

语种：英文

摘要：The elliptic loop equation oi cosmic string is studied in the Minkowski space and during the radiation-dominated era in the Robertson-Walker universe. A remarkable fact about this equation is that a loop may never contract to one with a Schwarzschild radius. if it is sufficiently non-circular.