We present a solvable model of two-dimensional dilaton-gravity coupled to a massless scalar field. We locally integrate the field equations and briefly discuss the properties of the solutions. For a particular choice of the coupling between the dilaton and the scalar field the model can be interpreted as the two-dimensional effective theory of 2+1 cylindrical gravity minimally coupled to a massless scalar field.
M. Cavaglia, "Solvable Model of Two-Dimensional Dilaton Gravity Coupled to a Massless Scalar Field," Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 57, no. 8, pp. 5295-5298, American Physical Society (APS), Apr 1998.
The definitive version is available at https://doi.org/10.1103/PhysRevD.57.5295
University of Torino
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