EXACT-SOLUTIONS AND THE EFFECTIVE EQUATION OF STATE IN KALUZA-KLEIN THEORY

被引:60
作者
DELEON, JP
WESSON, PS
机构
[1] UNIV WATERLOO,DEPT PHYS,WATERLOO N2L 3G1,ONTARIO,CANADA
[2] STANFORD UNIV,DEPT PHYS,HANSEN LABS,GPB,STANFORD,CA 94305
关键词
D O I
10.1063/1.530028
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A generalization of the standard class of solutions in the Kaluza-Klein (4 + 1) gravity, wherein the spherically symmetric metric depends not only on the radius but also on the extra coordinate, is considered. Two new classes of exact solutions of the empty Kaluza-Klein field equations are given. However, it is known that apparently empty solutions of the (4 + 1) Kaluza-Klein equations can be interpreted as solutions with effective matter properties of the (3 + 1) Einstein equations. The physical importance of the new solutions is that in this approach the dependency on the extra coordinate allows us to obtain more general equations of state than before, including ones for radiation, dust, vacuum, and stiff matter.
引用
收藏
页码:4080 / 4092
页数:13
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