Title: Non-Hermiticity: a new paradigm for model building in particle physics
Abstract: Non-Hermitian quantum theories have been applied in many other areas of physics. In this talk, I will review recent developments in the formulation of non-Hermitian quantum field theories, highlighting features that are unique compared to Hermitian theories. I will describe their second quantisation, their crucial discrete symmetries and how continuous symmetry properties are borne out, including Noether’s theorem, the Goldstone theorem and the Englert-Brout-Higgs mechanism. As examples, I will describe non-Hermitian deformations of QED, the Higgs-Yukawa theory and flavour oscillations, illustrating the potential implications for the neutrino sector. Together, these results pave the way for a systematic programme of non-Hermitian model building beyond the Standard Model of particle physics.
Talk – Video
Talk – Slides
Leave a Comment
Last Updated: 5th May 2021 by Denjoe O'Connor
Peter Millington (University of Nottingham)
Title: Non-Hermiticity: a new paradigm for model building in particle physics
Abstract: Non-Hermitian quantum theories have been applied in many other areas of physics. In this talk, I will review recent developments in the formulation of non-Hermitian quantum field theories, highlighting features that are unique compared to Hermitian theories. I will describe their second quantisation, their crucial discrete symmetries and how continuous symmetry properties are borne out, including Noether’s theorem, the Goldstone theorem and the Englert-Brout-Higgs mechanism. As examples, I will describe non-Hermitian deformations of QED, the Higgs-Yukawa theory and flavour oscillations, illustrating the potential implications for the neutrino sector. Together, these results pave the way for a systematic programme of non-Hermitian model building beyond the Standard Model of particle physics.
Talk – Video
Talk – Slides
Category: Uncategorised
Recent Posts
International physics conference, hosted by DIAS, seeks to address gender equality
DIAS Astrophotography competition goes mobile for 2024
Irish scientists are part of groundbreaking discovery with James Webb Space Telescope
Dr Pauline Gagnon (formerly of CERN) to deliver two talks at DIAS
DIAS Professor announced as next President of the European Southern Observatory’s Council
Language switcher