Event DetailsEvent Dates: Tuesday, February 21, 2017 - 4:00pmSeminar Location: JILA X317Speaker Name(s): Paul HessSpeaker Affiliation(s): Joint Quantum Institute, University of Maryland Seminar Type/SubjectScientific Seminar Type: JILA Public SeminarEvent Details & Abstract: Linear arrays of trapped atomic ions are a unique experimental platform for studying emergent phenomenon in many-body quantum physics. Using laser light to drive collective ion motion, we generate long-range interactions between trapped ion spins and realize models of frustrated quantum magnetism. Local control and individual spin resolution allow us to study such models in ways not possible using condensed matter experiments. I will discuss two recent results where our trapped ions were used to study universal properties when these models are out-of-equilibrium. First, by applying programmable disorder, we generated many-body localized (MBL) states that defy thermalization and retain long-term memory of their initial conditions. Second, when periodically strobing the ions with a disordered drive, we observed that the many-body localization stabilized collective oscillations of the spins, creating a state known as a discrete time crystal.