  In this article, we study the stability of the space of asymptotic fermion
states in (2+1)D, when long range interparticle interactions are present. This
is done in the framework of bosonization, where the fermion propagator can be
represented in terms of a vortex correlator. In particular, we discuss possible
instabilities in the large distance behavior of the induced action for the
vortex worldline.
