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Dark energy is an important science driver of many upcoming large-scalesurveys. With small, stable seeing and low thermal infrared background, Dome A,Antarctica, offers a unique opportunity for shedding light on fundamentalquestions about the universe. We show that a deep, high-resolution imagingsurvey of 10,000 square degrees in \emph{ugrizyJH} bands can providecompetitive constraints on dark energy equation of state parameters using typeIa supernovae, baryon acoustic oscillations, and weak lensing techniques. Sucha survey may be partially achieved with a coordinated effort of the Kunlun DarkUniverse Survey Telescope (KDUST) in \emph{yJH} bands over 5000--10,000 deg$^2$and the Large Synoptic Survey Telescope in \emph{ugrizy} bands over the samearea. Moreover, the joint survey can take advantage of the high-resolutionimaging at Dome A to further tighten the constraints on dark energy and tomeasure dark matter properties with strong lensing as well as galaxy--galaxyweak lensing.

Probing Dark Energy with the Kunlun Dark Universe Survey Telescope