94 citations · 291 across the 26 of their papers we have counts for
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A Continuum Approach to 2D-Quantum Gravity for C>1
M. Martellini, M. Spreafico, K. Yoshida
A Lagrangian continuum model for a string theory with central charge is formulated by incorporating Weyl and diffeomorphism gauge fixing. In particular the tachyon scattering…
12j-symbols and four-dimensional quantum gravity
Mauro Carfora, Maurizio Martellini, Annalisa Marzuoli
We propose a model which represents a four-dimensional version of Ponzano and Regge's three-dimensional euclidean quantum gravity. In particular we show that the exponential of the…
A Conformal Affine Toda Model of 2D Black Holes: A Quantum Study of the Evaporation End-Point
F. Belgiorno, A. S. Cattaneo, M. Martellini +1
In this paper we reformulate the dilaton-gravity theory of Callan \etal\ as a new effective conformal field theory which turns out to be a generalization of the so-called -co…
On the Stability of a Stringy Black Hole
A. Carlini, F. Fucito, M. Martellini
We study the stability under perturbations of a charged four dimensional stringy black hole arising from gauging a previously studied WZW model. We find that the black hole is stab…
2+1 Dimensional Quantum Gravity as a Gaussian Fermionic System and the 3D-Ising Model
Giuseppe Bonacina, Maurizio Martellini, Mario Rasetti
We show that 2+1-dimensional Euclidean quantum gravity is equivalent, under some mild topological assumptions, to a Gaussian fermionic system. In particular, for manifolds topologi…
A continuum string model for
M. Martellini, M. Spreafico, K. Yoshida
The non critical string (2D gravity coupled to the matter with central charge ) is quantized taking care of both diffeomorphism and Weyl symmetries. In incorporating the gauge f…