  Results are presented from the ATLAS collaboration from the 2010 LHC heavy
ion run, during which nearly 10 inverse microbarns of luminosity were
delivered. Soft physics results include final charged particle multiplicities
and collective flow (including final elliptic flow results). The charged
particle multiplicity, which tracks initial state entropy production, increases
by a factor of two relative to the top RHIC energy, with a centrality
dependence close to that already measured at RHIC. Measurements of elliptic
flow out to large transverse momentum also show similar results to what was
measured at RHIC, but no significant pseudorapidity dependence. Comparisons are
made with elliptic flow predicted using energy loss calculations. Extensions of
these measurements to higher harmonics have also been made, and can be used to
explain novel structures in the two-particle correlation functions that had
long been attributed to jet-medium interactions. New hard probe measurements
include single muons, jets and high p_T hadrons. Single muons at high momentum
can be used to extract the yield of W\pm bosons and are found to be consistent
within statistical uncertainties with a scaling with binary collisions.
Conversely, jets are found to be suppressed in central events by a factor of
approximately two relative to peripheral events, with no significant dependence
on the jet energy. Fragmentation functions are also found to be the same in
central and peripheral events. Update asymmetry results confirm previous ATLAS
measurements with increased statistics, and multiple jet cone sizes are
presented. Finally, charged hadrons have been measured out to 30 GeV, and their
centrality dependence relative to peripheral events is found to be similar to
that found for jets.
