Perturbative construction of QED using ERG
Kobe University Physics Dept.
13.09-2012 Thursday / Perşembe 15:00
Özet / Abstract : I would like to explain how to use the exact renormalization group (Wilson-Polchinski differential equation) to construct QED perturbatively. I first introduce the necessary tools using a real scalar theory as a concrete example. I then explain how to construct QED by imposing the Ward-Takahashi identity to the solution of the ERG differential equation. I end the talk by deriving the Khalatnikov-Landau equation for the gauge parameter dependence of the correlation functions.