The National Scientific Commission 4 (CSN4) of the Italian National Institute for Nuclear Physics (INFN) is responsible for coordinating and supporting research in the field of theoretical physics. Its main goal is to develop models and interpretations capable of guiding, supporting, and complementing the experimental investigations promoted by the INFN. CSN4’s activities range from particle physics to theoretical cosmology, including nuclear physics, field theory, theoretical biophysics, and the exploration of new technologies. Particular attention is also devoted to the development of new ideas and theories that go beyond the Standard Model. The commission encourages close collaboration between theorists and experimentalists, recognising the importance of integrating these two approaches. The INFN Section of Tor Vergata is actively engaged in the following activities:
| Logo | Sigla | Descrizione | Responsabile |
|---|---|---|---|
 | BIOPHYS | Biological Theoretical Physics | Velia Minicozzi |
| ENP | Exploring New Physics | Alberto Salvio |
 | FIELDTURB | Field Theory of Turbulence | Massimo Cencini |
| INDARK | Inflation, Dark Matter and the Large-Scale Structure of the Universe | Marina Migliaccio |
| LQCD123 | Cromodinamica quantistica su reticolo | Nazario Tantalo |
| QCDLAT | Cromodinamica quantistica su reticolo | Giulia Maria De Divitiis |
| STEFI | String Theory and Fundamental Interactions | Raffaele Savelli |
| TIME2QUEST | Theoretical methods for 2D materials in Quantum Information Technology Studies | Gianluca Stefanucci |
Some older projects have been: