7 papers
The 2D analogue of the Reissner-Nordstrom solution
S. Monni, M. Cadoni
A two-dimensional (2D) dilaton gravity model, whose static solutions have the same features of the Reissner-Nordstrom solutions, is obtained from the dimensional reduction of a fou…
The dualities of 3D dilaton gravity
Mariano Cadoni
We investigate Brans-Dicke dilaton gravity theories in 2+1 dimensions. We show that the reduced field equations for solutions with diagonal metric and depending only on one spaceti…
Dilatonic black holes in a S-duality model
S. Monni, M. Cadoni
We find exact charged black hole solutions of a string effective action that is invariant under S-duality transformations. These black hole solutions have the same causal structure…
Trace anomaly and Hawking effect in generic 2D dilaton gravity theories
Mariano Cadoni
Black hole solutions in the context of a generic matter-coupled two-dimensional dilaton gravity theory are discussed both at the classical and semiclassical level. Starting from ge…
Instability of the R^3\times S^1 vacuum in low-energy effective string theory
Mariano Cadoni, Marco Cavaglia'
We present and discuss an euclidean solution of the low-energy effective string action that can be interpreded as a semiclassical decay process of the ground state of the theory.
String Quantum Symmetries and the SL(2,Z) Group
M. Cadoni
We prove, using arguments relying only on the "special Kähler" structure of the moduli space of the Calabi-Yau three-fold, that in the case of one single modulus the quantum modula…