Séminaires communs des Masters
"Astrophysique"
et
"Physique Subatomique et Astroparticules"
par Franz KLINKHAMER (Karlsruher Institut für Technologie)
A brief introduction to the notorious cosmological constant problem is given. Then, a particular approach is discussed, which has been developed by Volovik and the present speaker over the last years. This talk will be aimed at a non-expert audience, skipping most technicalities. The presented approach provides a possible solution to the main cosmological constant problem: why is Lambda^1/4 negligible compared to the energy scales of the electroweak standard model (not to mention the Planck energy)? But, as always, many questions remain.