activity
19932025
most citedMicrolocal Analysis and Interacting Quantum Field Theories: Renormalization on Physical Backgrounds

428 citations · 1.5k across the 30 of their papers we have counts for

collaborators

31 papers

math-ph2025

Perturbative algebraic quantum field theory and beyond

Romeo Brunetti, Klaus Fredenhagen, Kasia Rejzner

In this review, we summarize the main ideas of perturbative algebraic quantum field theory, which is a rigorous framework combining some of the Haag-Kastler axioms with perturbativ…

math-ph2025

Thermodynamical aspects of fermions in external electromagnetic fields

Romeo Brunetti, Klaus Fredenhagen, Nicola Pinamonti

The thermodynamics of Dirac fields under the influence of external electromagnetic fields is studied. For perturbations which act only for finite time, the influence of the perturb…

math-ph2024

Møller maps for Dirac fields in external backgrounds

Valentino Abram, Romeo Brunetti

In this paper we study the foundations of the algebraic treatment of classical and quantum field theories for Dirac fermions under external backgrounds following the initial contri…

gr-qc2022

Locally covariant approach to effective quantum gravity

Romeo Brunetti, Klaus Fredenhagen, Kasia Rejzner

Despite the fact that quantum gravity is non-renormalisable, a consistent and mathematically rigorous construction of a perturbation series is possible. This is based on the use of…

math-ph2022

Non-trivial bundles and Algebraic Classical Field Theory

Romeo Brunetti, Andrea Moro

Inspired by the recent algebraic approach to classical field theory, we propose a more general setting based on the manifold of smooth sections of a non-trivial fiber bundle. Centr…

math-ph2022

Unitary, anomalous Master Ward Identity and its connections to the Wess-Zumino condition, BV formalism and -algebras

Romeo Brunetti, Michael Dütsch, Klaus Fredenhagen +1

The C*-algebraic construction of QFT by Buchholz and one of us relies on the causal structure of spacetime and a classical Lagrangian. In one of our previous papers we have introdu…