  In this paper we study the influence of an electric field on a two
dimen-sional waveguide. We show that bound states that occur under a
geometrical deformation of the guide turn into resonances when we apply an
electric field of small intensity having a nonzero component on the
longitudinal direction of the system. MSC-2010 number: 35B34,35P25, 81Q10,
82D77.
