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29 March 2024
 
  » arxiv » gr-qc/0101036

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Chiral models in dilaton-Maxwell gravity
Oleg V. Kechkin ; Maria V. Yurova ;
Date 10 Dec 2000
Journal Gen.Rel.Grav. 32 (2000) 1389-1397
Subject gr-qc
AbstractWe 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.
Source arXiv, gr-qc/0101036
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