25 citations · 116 across the 9 of their papers we have counts for
9 papers
Running Einstein Constant and a Possible Vacuum State of the Universe
Giovanni Montani, Giulia Maniccia, Elisa Fazzari +1
We propose a revised formulation of General Relativity for cosmological settings, in which the Einstein constant varies with the energy density of the Universe. We demonstrate that…
Analyzing the influence of graviton fluctuations on the inflationary spectrum with a Kuchař-Torre clock
Giulia Maniccia, Giovanni Montani, Marco Tosoni
This paper focuses on the search for a coherent and consistent formulation to describe quantum gravity corrections to Quantum Field Theory. We implement two fundamental ingredients…
Quantum Gravity Corrections to the inflationary spectrum in a Bohmian approach
Giulia Maniccia, Giovanni Montani
A precise interpretation of the Universe wave function is forbidden in the spirit of the Copenhagen School since a precise notion of measure operation cannot be satisfactorily defi…
Study of the Inflationary Spectrum in the Presence of Quantum Gravity Corrections
Giulia Maniccia, Giovanni Montani, Leonardo Torcellini
After a brief review of the different approaches to predict the possible quantum gravity corrections to quantum field theory, we discuss in some detail the formulation based on a G…
QFT in Curved Spacetime from Quantum Gravity: proper WKB decomposition of the gravitational component
Giulia Maniccia, Giovanni Montani, Stefano Antonini
Starting from a re-analysis of previous work, we construct the proper low energy quantum field theory (QFT) limit of a full quantum gravity theory in the Born-Oppenheimer approach.…
WKB Approaches to Restore Time in Quantum Cosmology: Predictions and Shortcomings
Giulia Maniccia, Mariaveronica De Angelis, Giovanni Montani
In this review, we analyse different aspects concerning the possibility to separate a gravity-matter system into a part which lives close to a quasi-classical state and a "small" q…
Quantum gravity corrections to the matter dynamics in the presence of a reference fluid
Giulia Maniccia, Giovanni Montani
We analyze the effect induced on standard quantum field theory (in functional approach) by quantum gravity corrections to a pure classical background. In the framework of the Kucha…
WKB approach to the gravity-matter dynamics: a cosmological implementation
Giulia Maniccia, Giovanni Montani
The problem of time emerging in the canonical quantization procedure of gravity signals a necessity to properly define a relational time parameter. Previous approaches, which are h…
Non-Unitarity Problem in Quantum Gravity Corrections to Quantum Field Theory with Born-Oppenheimer Approximation
Federico Di Gioia, Giulia Maniccia, Giovanni Montani +1
The problem of time is one of the most relevant open issues in canonical quantum gravity. Although there is a huge literature about this topic, a commonly accepted solution has not…