Speaker
Shahn Majid
Description
We apply the geometric realisation programme for spectral triples within quantum Riemannian geometry (QRG) to the algebra of 2x2 matrices with a Lorentzian metric to find an S^1 moduli of almost spectral triples where the Dirac operator is not hermitian but has natural hermitian and antihermitian parts (based on joint work with E. Lira-Torres). I will also explain how Kaluza Klein ideas look in QRG and lead to multiplets of fields on spacetime with a distribution of dynamically generated masses (based on joint work with J. Argota-Quiroz).
