Generating solutions via sigma-models

Details Generating solutions via sigma-models Generating solutions via sigma-models

2008-12-31

arxiv.org/abs/0901.0098v1

Prog.Theor.Phys.Suppl.172:121-130,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

An updated version of the talk given at ICGA8 and published in the Proceedings. 14 pages, ptptex

Scientific paper

10.1143/PTPS.172.121

We review recent development of solution-generating techniques for four and five-dimensional Einstein equations coupled to vector and scalar fields. This includes D=4 Einstein-Maxwell-dilaton-axion theory with multiple vector fields, D=5 Einstein-Maxwell gravity with the Chern-Simons term (minimal five-dimensional supergravity), and some other models which attracted attention in connection with black rings. The method is based on reduction to three-dimensional gravity coupled sigma-models with symmetric target spaces. Our recent results open a way to construct the general charged black rings in five-dimensional supergravity possibly coupled to vector multiplets.

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