# Constructive field theory without tears

Presented by:
J Magnen École Polytechnique
Date:
Friday 11th April 2008 - 10:15 to 11:00
Venue:
INI Seminar Room 1
Abstract:

We present a preliminary result of a programme aiming at simplifying the basic arguments of constructive (i.e. non-perturbative) field theory. It expresses the pressure of the $\phi^{4}$ model with cut-offs as a convergent sum of terms associated to trees whose vertices are non-perturbative loops. We give also the expression for a correlation function.

The video for this talk should appear here if JavaScript is enabled.
If it doesn't, something may have gone wrong with our embedded player.
We'll get it fixed as soon as possible.