A COSMOLOGICAL CONSTANT WITH D^(4)×S^(1)×M^(5) COMPACTIFICATION OF CHIRAL CLOSED STRING  

作　　者：YAN Jun LI Jiangnan HU Shike 颜骏;李江南;胡诗可(Southwest Institute of Applied Magnetics,Chengdu;Department of Physics,Sichuan University,Chengdu)

机构地区：[1]Southwest Institute of Applied Magnetics,Chengdu [2]Department of Physics,Sichuan University,Chengdu

出　　处：《Chinese Physics Letters》1989年第3期141-144,共4页中国物理快报（英文版）

摘　　要：A cosmological constant has been derived from compactification of chiral closed-string.The(3+1)-dimensional space-time D^(4) has de-Sitter or anti-de-Sitter geometry.The compact space M^(5) is a Einstein manifold or a hyperbolic manifold.Some properties about tachyon and massless ghost have been discussed.

关 键 词：STRING 

分 类 号：P14[天文地球—天体物理]