107 citations · 1.4k across the 80 of their papers we have counts for
6 papers · 1 filter
Linearized Fields for Causal Variational Principles: Existence Theory and Causal Structure
Claudio Dappiaggi, Felix Finster
The existence theory for solutions of the linearized field equations for causal variational principles is developed. We begin by studying the Cauchy problem locally in lens-shaped…
Ricci Flow from the Renormalization of Nonlinear Sigma Models in the Framework of Euclidean Algebraic Quantum Field Theory
Mauro Carfora, Claudio Dappiaggi, Nicolò Drago +1
The perturbative approach to nonlinear Sigma models and the associated renormalization group flow are discussed within the framework of Euclidean algebraic quantum field theory and…
Tunnelling processes for Hadamard states through a 2+1 dimensional black hole and Hawking radiation
Francesco Bussola, Claudio Dappiaggi
We analyse the local behaviour of the two-point correlation function of a quantum state for a scalar field in a neighbourhood of a Killing horizon in a -dimensional spacetime,…
Ground states of a Klein-Gordon field with Robin boundary conditions in global anti-de Sitter spacetime
Claudio Dappiaggi, Hugo Ferreira, Alessio Marta
We consider a real, massive scalar field both on the -dimensional anti--de Sitter (AdS) spacetime and on its universal cover CAdS. In the second scenario, we extend the…
Fundamental solutions for the wave operator on static Lorentzian manifolds with timelike boundary
Claudio Dappiaggi, Nicolò Drago, Hugo Ferreira
We consider the wave operator on static, Lorentzian manifolds with timelike boundary and we discuss the existence of advanced and retarded fundamental solutions in terms of boundar…
Mode solutions for a Klein-Gordon field in anti-de Sitter spacetime with dynamical boundary conditions of Wentzell type
Claudio Dappiaggi, Hugo R. C. Ferreira, Benito A. Juárez-Aubry
We study a real, massive Klein-Gordon field in the Poincaré fundamental domain of the -dimensional anti-de Sitter (AdS) spacetime, subject to a particular choice of dynamica…