01:02:44
publiée le 18 juin 2026
Des oscillations de Fourier aux ondes gravitationnelles : la théorie analytique de la propagation de l'information
De Ronald Coifman
Alexander Strohmaier : On Gupta‐Bleuler quantization in globally hyperbolic spacetimes with non-compact Cauchy surfaces.
Apparaît dans la collection : Summer School 2014 - Asymptotic Analysis in General Relativity
I will explain how one can formulate and formalize the Gupta-Bleuler framework for the Quantization of the electromagnetic field in an algebraic manner so that it works on globally hyperbolic space‐times. I will then discuss a construction of physical representations that works without the "spectral gap assumption" in the case of absense of zero energy resonances. These can be excluded by topologocial restrictions at infinity. This is based on joint work with Felix Finster.
