2026/03/25(Wed) 14:30 -15:45 七樓研討室 7F, P7A Seminar Room
Title
Quantum Magic in Fundamental Interactions
Speaker
Prof. Ian Low (Northwestern University)Abstract
In quantum computing, non-stabilizerness — the "magic" — is an essential resource for universal quantum computation that goes beyond entanglement. In this talk I examine the production of magic in 2-to-2 scattering processes in Quantum Electrodynamics (QED), where we find that, despite being capable of producing maximal entanglement easily, QED generally produces magic well below the theoretical maximum — suggesting it may not be an efficient mechanism for generating quantum computational advantage. I then show how extending this analysis to the full electroweak sector of the Standard Model, where the Z boson also mediates lepton scattering, leads to a remarkable result: minimizing magic production in charged lepton scattering as a function of the weak mixing angle yields a value that agrees with the experimentally measured value at sub-percent level, up to energies of 10 TeV. These results open new connections between quantum information theory and fundamental physics, and suggest that the Standard Model tends to generate minimal quantum resources from the computational viewpoint.
Language
演講語言 (Language): in English