Solutions for Neutral for Axi-Dilaton Gravity in 4-Dimensions

Details Solutions for Neutral for Axi-Dilaton Gravity in 4-Dimensions Solutions for Neutral for Axi-Dilaton Gravity in 4-Dimensions

1995-02-08

arxiv.org/abs/gr-qc/9502019v1

Class.Quant.Grav.12:L25-L30,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages Plain Tex (No Figures), Letter to Editor, Classical and Quantum Gravity

Scientific paper

10.1088/0264-9381/12/4/001

We examine a 1 parameter class of actions describing the gravitational interaction between a pair of scalar fields and Einsteinian gravitation. When the parameter is positive the theory corresponds to an axi-dilatonic sector of low energy string theory. We exploit an SL(2,R) symmetry of the theory to construct a family of electromagnetically neutral solutions with non-zero axion and dilaton charge from solutions of the Brans-Dicke theory. We also comment on solutions to the theory with negative coupling parameter.

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