A. Belin, S. Penati, A. Tomasiello, A. Zaffaroni, S. Pasquetti, N. Mekareeya

The String Theory Group studies fundamental interactions, focusing on quantum field theory, quantum gravity, and the AdS/CFT correspondence.
Their research covers renormalization group flows, IR dualities, emergent phenomena, and conformal field theories. They also investigate defects and anomalies in quantum field theories involving generalized symmetries, using exact methods such as localization and superconformal indices in supersymmetric gauge theories.
A key area of interest is black hole physics, particularly the microscopic origin of black hole entropy and its role in quantum gravity.
The group also explores the landscape of consistent quantum gravity theories. In string theory, this involves studying different compactifications, especially those that could lead to de Sitter solutions.
Additionally, they examine the deep connections between geometry and physics in string theory compactifications, analyzing fluxes, dualities, and their broader impact on theoretical physics.

S. Alioli, C. Oleari, E.Re, L. Rottoli

Our field of study is Quantum Chromo--Dynamics (QCD), the relativistic quantum theory of the strong interaction. Because of its complexity, this theory can only be approached with suitable approximation techniques. For some problems, such as scatterings at very high energies, various perturbation theory schemes are available. We are also interested in several aspects of the Standard Model of fundamental interactions, which provides a unified description of the electromagnetic and weak interactions of quarks and leptons. In spite of the successes of this model, there are many reasons to think it is actually incomplete, and that it will have to be extended to a complete unification of the fundamental forces. In particular, supersymmetry, a hypothetical new symmetry that would relate elementary forces and matter particles, is a candidate for such future developments.

M. Bruno, M. Cè, M. Dallabrida, L. Giusti, M. Pepe, F. Rapuano

We study relativistic quantum field theories non-perturbatively. This is required for the theoretical understanding of many phenomena in Physics where the interactions among the fundamental constituents are strong.
In the Standard Model of Particle Physics, Quantum Chromodynamics (QCD) is the fundamental theory of the Strong Interactions that describes the dynamics of quarks and gluons: it determines, for instance, the properties and the structure of hadrons, the features of the quark-gluon plasma at high temperature, and in flavour physics it is instrumental in the derivation of precise predictions from the Standard Model and beyond. We are particularly interested in processes that may shed light on several weaknesses of the Standard Model, and possibly reveal the existence of new fundamental degrees of freedom in Nature, such as the anomalous magnetic moment of leptons, rare hadronic decays, weak and strong CP violation. In order to define non-perturbatively the relevant quantum field theories, the four-dimensional space-time has to be discretized on a lattice. Once the quantities of interest have been defined non-perturbatively in a rigorous way, they are computed on the fastest High-Performance Computers (HPC) made available by the European supercomputing centers. To this aim specialized algorithms and computational strategies are constantly developed within our group, together with highly-optimized codes and software which are created, tested and refined on locally assembled and managed small-scale HPC clusters.