63 citations · 69 across the 6 of their papers we have counts for
6 papers
Stable cosmological models driven by a free quantum scalar field
Claudio Dappiaggi, Klaus Fredenhagen, Nicola Pinamonti
In the mathematically rigorous analysis of semiclassical Einstein's equations, the renormalisation of the stress-energy tensor plays a crucial role. We address such a topic in the…
BCFT and Ribbon Graphs as tools for open/closed string dualities
Valeria L. Gili, Mauro Carfora, Claudio Dappiaggi
In the framework of simplicial models, we construct and we fully characterize a scalar boundary conformal field theory on a triangulated Riemann surface. The results are analysed f…
Boundary Conformal Field Theory and Ribbon Graphs: a tool for open/closed string dualities
Mauro Carfora, Claudio Dappiaggi, Valeria L. Gili
We construct and fully characterize a scalar boundary conformal field theory on a triangulated Riemann surface. The results are analyzed from a string theory perspective as tools t…
From random Regge triangulations to open strings
Mauro Carfora, Claudio Dappiaggi, Valeria L. Gili
We show how Boundary Conformal Field Theory deformation techniques allow for a complete characterisation of the coupling between the discrete geometry inherited uniformizing a rand…
Pseudospheres in geometry and physics: from Beltrami to De Sitter and beyond
B. Bertotti, R. Catenacci, C. Dappiaggi
We review the extraordinary fertility and proliferation in mathematics and physics of the concept of a surface with constant and negative Gaussian curvature. In his outstanding 186…
The conformal geometry of Random Regge Triangulations
M. Carfora, C. Dappiaggi, A. Marzuoli
We review some of our recent work on the conformal geometry corresponding to the triangulated surfaces used in 2-dimensional simplicial quantum gravity. In particular, we discuss t…