Zusammenfassung
We present numerical results for non-compact three-dimensional QED for
numbers of flavors N\_f=1 and N\_f=4.In particular, we address the issue of
whether chiral symmetry is spontaneously broken in the continuum limit, and
obtain a positive answer for N\_f=1, with a dimensionless condensate estimated
to be beta^2<psibarpsi> \~= O(10^-3), implying that the critical number of
flavors N\_fc>1. We also compare the N\_f=1 and N\_f=4 models by analysing the
transition from strong to weak coupling behaviour using an equation of state
based on a continuous phase transition. While some qualitative differences
emerge, it appears difficult to determine whether N\_f=4 lies above or below
N\_fc.
Nutzer