  Atoms in spatially dependent light fields are attracted to local intensity
maxima or minima depending on the sign of the frequency difference between the
light and the atomic resonance. For light fields confined in open high-Q
optical resonators the backaction of the atoms onto the light field generates
dissipative dynamic opto-mechanical potentials, which can be used to cool and
trap the atoms. Extending the conventional case of high field seekers to the
regime of blue atom-field detuning, where the particles are low field seeking,
we show that inherent nonlinear atom field dynamics still can be tailored to
cool and trap near zero field intensity. Studying field intensity, particle
localization and kinetic energy for cavity driving or pumping the particle from
the side, we identify optimal parameter regimes, where sub-Doppler cooling
comes with trapping and minimal atomic saturation.
