Bari Theory Xmas Workshop 2025

Session

Afternoon session 1

15 Dec 2025, 15:00

Aula A (Bari, Sezione INFN e Dipartimento Interateneo di Fisica)

Conveners

Afternoon session 1

• Giorgia Trotta
• Giuseppe Roselli (Istituto Nazionale di Fisica Nucleare & Università degli Studi di Bari)

13. Routes beyond the Standard Model

Davide Milillo (Istituto Nazionale di Fisica Nucleare)

15/12/2025, 15:00

Despite the countless experimental confirmations, the Standard Model (SM) leaves many unanswered questions. Tensions have emerged over time between its predictions and experimental data, mostly in the flavor sector. For these reasons, a theory capable to account at least partially for the observed discrepancies is actively sought for.

Notable examples in the exploration of physics beyond...

17. Hunting new physics in semileptonic b→u transitions

Maria Letizia Di Cuia

15/12/2025, 15:12

Properties and interactions of elementary particles are successfully described by the theory known as the Standard Model (SM). Despite the countless confirmations of the theory, it is generally believed that physics beyond the SM (BSM) should exist. In particular, the increase in the experimental precision has put more stringent constraints on the theory and a number of tensions between the SM...

8. Wandering range of robust symmetries

Vito Giuseppe Viesti (Istituto Nazionale di Fisica Nucleare)

15/12/2025, 15:24

A powerful way to study quantum systems is through their symmetries, or equivalently, the conserved quantities associated with the Hamiltonian. Standard quantum mechanics tells us that these correspond to operators commuting with the Hamiltonian. Once the Hamiltonian is known, its conserved quantities can, at least in principle, be identified.
However, only those symmetries that persist under...

12. Error Scaling of Trotter Product Formulas

Francesco Flavio Perrini

15/12/2025, 15:36

Solving the Schrödinger equation is one of the most fundamental tasks in quantum physics. However, obtaining exact solutions is often challenging, if not outright infeasible. In such cases, approximation methods become essential. Among them, Trotter product formulas offer a particularly powerful and versatile approach: they approximate the time-evolution operator by decomposing it into simpler...

1. Torque-driven supercoiling transition in open DNA polymers

Daniela Moretti (Istituto Nazionale di Fisica Nucleare)

15/12/2025, 15:48

In this work, we combine coarse-grained Brownian dynamics simulations and mean-field theory to study supercoiling dynamics, as well as the steady-state profiles of twist and writhe, in an open DNA polymer where one of the free ends is subjected to a constant torque. Even though the other end is free, and hence can spin and release torsional stress, we observe that the entire chain transitions...