  We calculate the fluctuation correction to the normal state conductivity in
the vicinity of a quantum phase transition from a superconducting to normal
state, induced by applying a magnetic field parallel to a dirty thin film or a
nanowire with thickness smaller than the superconducting coherence length. We
find that at zero temperature, where the correction comes purely from quantum
fluctuations, the positive Aslamazov-Larkin contribution, the negative density
of states contribution, and the Maki-Thompson interference contribution, are
all of the same order and the total correction is negative. Further we show
that based on how the quantum critical point is approached, there are three
regimes that show different temperature and field dependencies which should be
experimentally accessible.
