Την Τετάρτη 22 Οκτωβρίου στις 12:00 μ.μ. ο Σωκράτης Τριφυνόπουλος (CERN) θα δώσει δια ζώσης ομιλία στην αίθουσα συνεδριάσεων του τμήματος Φυσικής (4ος όροφος, αίθουσα 26).

Η ομιλία θα αναμεταδοθεί μέσω Zoom στον ακόλουθο σύνδεσμο:
https://authgr.zoom.us/j/98758846531?pwd=SrohN9nda6vt0AaTBv6xptSr8VwDN8.1

Meeting ID: 987 5884 6531
Passcode: HEP-AUTH

Ακολουθούν ο τίτλος και η περίληψη της ομιλίας.

Τίτλος: Properties of Fundamental Particles from Quantum Information?

Περίληψη: 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 exist 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.