Einstein-Weyl from Kaluza-Klein

被引:16
|
作者
Grumiller, D. [1 ]
Jackiw, R. [1 ]
机构
[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
关键词
D O I
10.1016/j.physleta.2007.12.014
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We discuss the Kaluza-Klein reduction of spaces with (anti-)self-dual Weyl tensor and point out the emergence of the Einstein-Weyl equations for the reduction from four to three dimensions. As a byproduct we get a simple expression for the gravitational instanton density in terms of the Kaluza-Klein functions. (c) 2007 Elsevier B.V. All rights reserved.
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页码:2547 / 2551
页数:5
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