Quantum causality in kappa Minkoswki
arXiv:2503.24192
Abstract
Recent results on causality in noncommutative space-time are reviewed. We study, in particular, quantum causal structures in 1+1 dimensional kappa Minkowski space-time. This later is described by a twisted Lorentzian Spectral Triple build with a twisted set of derivatives. Investigation of causality provides a quantum constraint, which is a quantum analog of the speed light limits
From a talk given at the Corfu Summer Institute, "Workshop on Noncommutative and Generalized Geometry in String theory, Gauge theory and Related Physical Models", September 2024