15 citations · 45 across the 11 of their papers we have counts for
11 papers
Complex Path Integrals and the Space of Theories
D. D. Ferrante, G. S. Guralnik, Z. Guralnik +1
The Feynman Path Integral is extended in order to capture all solutions of a quantum field theory. This is done via a choice of appropriate integration cycles, parametrized by M in…
de Sitter gravity from lattice gauge theory
Simon Catterall, Daniel Ferrante, A. Nicholson
We investigate a lattice model for Euclidean quantum gravity based on discretization of the Palatini formulation of General Relativity. Using Monte Carlo simulation we show that wh…
Symmetry Breaking: A New Paradigm for Non-Perturbative QFT and Topological Transitions
D. D. Ferrante
Symmetry Breaking is used as an "underlying principle", bringing different features of QFT to the foreground. However, the understanding of Symmetry Breaking that is used here is q…
Phase Transitions and Moduli Space Topology
D. D. Ferrante, G. S. Guralnik
By means of an appropriate re-scaling of the metric in a Lagrangian, we are able to reduce it to a kinetic term only. This form enables us to examine the extended complexified solu…
From Symmetry Breaking to Topology Change I
D. D. Ferrante, G. S. Guralnik
By means of an analogy with Classical Mechanics and Geometrical Optics, we are able to reduce Lagrangians to a kinetic term only. This form enables us to examine the extended solut…
Mollifying Quantum Field Theory or Lattice QFT in Minkowski Spacetime and Symmetry Breaking
D. D. Ferrante, G. S. Guralnik
This work develops and applies the concept of mollification in order to smooth out highly oscillatory exponentials. This idea, known for quite a while in the mathematical community…