Matrix Ernst potentials for Einstein-Maxwell-dilaton-axion with multiple vector fields
Abstract
We show that the Einstein-Maxwell-dilaton-axion system with multiple vector fields (bosonic sector of the D = 4, N = 4 supergravity) restricted to spacetimes possessing a non-null Killing vector field admits a concise representation in terms of the Ernst-type matrix valued potentials. A constructive derivation of the SWIP solutions is given and a colliding waves counterpart of the DARN-NUT solution is obtained. SU (m, m) chiral representation of the two-dimensionally reduced system is derived and the corresponding Kramer-Neugebauer-type map is presented.
- Publication:
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Physics Letters B
- Pub Date:
- February 1997
- DOI:
- 10.1016/S0370-2693(97)00295-5
- arXiv:
- arXiv:hep-th/9702039
- Bibcode:
- 1997PhLB..399..250G
- Keywords:
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- High Energy Physics - Theory
- E-Print:
- Latex file, no figures