# Solitons of axion-dilaton gravity.

@article{Bakas1996SolitonsOA, title={Solitons of axion-dilaton gravity.}, author={Bakas}, journal={Physical review. D, Particles and fields}, year={1996}, volume={54 10}, pages={ 6424-6434 } }

We use soliton techniques of the two-dimensional reduced {beta}-function equations to obtain nontrivial string backgrounds from flat space. These solutions are characterized by two integers ({ital n},{ital m}) referring to the soliton numbers of the metric and axion-dilaton sectors, respectively. We show that the Nappi-Witten universe associated with the SL(2){times}SU(2)/SO(1,1){times}U(1) CFT coset arises as a (1,1) soliton in this fashion for certain values of the moduli parameters, while…

## 33 Citations

All extremal instantons in Einstein-Maxwell-dilaton-axion theory

- Mathematics, Physics
- 2011

We construct explicitly all extremal instanton solutions to $\mathcal{N}=4$, $D=4$ supergravity truncated to one vector field (Einstein-Maxwell-dilaton-axion theory). These correspond to null…

On integrable models from pp-wave string backgrounds

- Physics
- 2002

We construct solutions of type-IIB supergravity with non-trivial Ramond- Ramond 5-form in ten dimensions by replacing the transverse ∞at space of pp-wave back- grounds with exact N = (4;4) c = 4…

2-D gravisolitons in string theory

- Physics
- 1996

Several gravitational string backgrounds can be interpreted as 2-dim soliton solutions of reduced axion-dilaton gravity. They include black-hole and worm-hole solutions as well as cosmological models…

Ehlers-Harrison transformations and black holes in dilaton-axion gravity with multiple vector fields

- Physics
- 1997

Dilaton-axion gravity with $p U(1)$ vector fields is studied on space-times admitting a timelike Killing vector field. Three-dimensional sigma-model is derived in terms of K\"ahler geometry, and…

Axion-fermion Coupling and Dyon Charge as Physical Signatures of a Space-time Inner Symmetry

- Physics
- 2021

In this paper we intend to complement the identification given in Kuerten & FernandesSilva [1] (Mod. Phys. Lett. A. Vol. 33, No. 16) which relates the axion to a metric spinor phase by means of…

CERN-TH/96-148 hep-th/9606030 2-D GRAVISOLITONS IN STRING THEORY ∗

- Physics
- 1996

Several gravitational string backgrounds can be interpreted as 2-dim soliton solutions of reduced axion-dilaton gravity. They include black-hole and wormhole solutions as well as cosmological models…

Solitons via Lie-Bäcklund transformation for 5D low-energy string theory

- Physics
- 2009

We apply a non-linear matrix transformation of Lie-Bäcklund type on a seed soliton configuration in order to obtain a new solitonic solution in the framework of the 5D low-energy effective field…

Oxidation ofD=3cosets and Bonnor dualities inD≤6

- Physics
- 2013

Bonnor's map in General Relativity is duality between (dimensionally reduced) vacuum gravity and static truncation of electro-vacuum theory. It was used as a tool to generate an exact solution of…

Geroch group description of black holes

- Mathematics
- 2014

A bstractOn one hand the Geroch group allows one to associate spacetime independent matrices with gravitational configurations that effectively only depend on two coordinates. This class includes…

Geroch Group Description of Black Holes Bidisha Chakrabarty and Amitabh Virmani

- Mathematics
- 2018

On one hand the Geroch group allows one to associate spacetime independent matrices with gravitational configurations that effectively only depend on two coordinates. This class includes stationary…