Top quark properties with ATLAS

The top quark is unique in the Standard Model due to its large mass, possible role in electroweak symmetry breaking and rapid decay without forming bound states. Precise measurements of its properties offer both sensitive tests of the Standard Model and possible pathways of discovering new physics, and are an important and challenging part of the ATLAS physics program. The prospects, evaluated from Monte Carlo simulations, for precise measurements of the top quark mass, $t \bar{t}$ spin correlations, $W$ polarization in top quark decays, anomalous $Wtb$ couplings, as well as the expected sensitivity for rare top quark decays through flavour changing neutral currents and for $t \bar{t}$ resonances will be described for a centre-of mass energy of 14 TeV and an integrated luminosity of 1 fb$^{-1}$.