Chiral models in dilaton-Maxwell gravity

Details Chiral models in dilaton-Maxwell gravity Chiral models in dilaton-Maxwell gravity

2001-01-10

arxiv.org/abs/gr-qc/0101036v1

Gen.Rel.Grav. 32 (2000) 1389-1397

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages in LaTex; published in Gen. Rel. Grav. 32 (2000) pp 1389-1397

Scientific paper

We study symmetry properties of the Einstein-Maxwell theory nonminimaly coupled to the dilaton field. We consider a static case with pure electric (magnetic) Maxwell field and show that the resulting system becomes a nonlinear sigma-model wich possesses a chiral representation. We construct the corresponding chiral matrix and establish a representation which is related to the pair of Ernst-like potentials. These potentials are used for separation of the symmetry group into the gauge and nongauge (charging) sectors. New variables, which linearize the action of charging symmetries, are also established; a solution generation technique based on the use of charging symmetries is formulated. This technique is used for generation of the elecricaly (magneticaly) charged dilatonic fields from the static General Relativity ones.

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