Choose timezone
Your profile timezone:
Departmental Seminars & Colloquia
Properties of Fundamental Particles from Quantum Information
by
→
Europe/Athens
B229 (ΘΕΕ02)
B229
ΘΕΕ02
UCY Department of Physics Lecture Room 1 (Aglantzia Campus)
Description
Abstract: Scattering processes provide a natural arena to explore how quantum information concepts manifest in particle physics. Beginning with low-energy nucleon–nucleon scattering, I show how characteristic entanglement patterns are tied to emergent symmetries such as the Wigner SU(4) symmetry. Turning to gauge and gravitational interactions, gluon and graviton scattering (and their supersymmetric counterparts) exhibit maximal entanglement at perpendicular kinematics, while magic remains below its maximal theoretical value. However, it is noteworthy that there exists an anticorrelation between magic production and the spin of the participating particles. Finally, a surprising link emerges when studying entanglement in electroweak 2→2 processes at π/2 scattering angles: the amount of entanglement is minimized when the Cabibbo–Kobayashi–Maskawa (CKM) matrix is nearly (but not exactly) diagonal, in qualitative agreement with observation. Extending this reasoning to the lepton sector, the same principle favors a Pontecorvo–Maki–Nakagawa–Sakata (PMNS) matrix with two large angles and a smaller one, again consistent with data, together with a possible indication of suppressed CP violation. These recurring patterns suggest that information-theoretic measures may provide a new perspective on the structure of fundamental interactions.
Speaker: Sokratis Trifinopoulos completed his undergraduate studies in TU Dortmund, Germany and moved to Zurich, Switzerland for MSc at ETH Zurich and PhD in Theoretical Physics at the University of Zurich under the supervision of Prof. Gino Isidori. Next, he joined SISSA, Trieste, as a Postdoc. Afterwards, Dr Trifinopoulos moved to Boston and joined the Institute of Artificial Intelligence and Fundamental Interactions (IAIFI) at MIT first as a Postdoc. He is currently at CERN-TH as a SNSF fellow. His research approach integrates a wide spectrum of methods, ranging from traditional Effective Field Theories to Quantum Information Theory and interpretable Artificial Intelligence, with the goal of exploring the boundaries of the Standard Model of particle physics and the Lambda cold dark matter model of cosmology.
