1. Critical Behavior at the Mott-Anderson TransitionVladimir Dobrosavljevic, Florida State University, DMR 0542026 The effects of disorder on quantum criticality prove to be much more dramatic than in classical systems. Recent work established that some critical points can be described by an ‘‘Infinite Randomness Fixed Point’’ (IRFP) and the associated quantum Griffiths phase, as established for certain classes of insulating quantum magnets. Here, we investigate the effects of weak and moderate disorder on the Mott transition at half filling in two dimensions. We find that disorder- induced spatial inhomogeneities give rise to an intermediate “electronic Griffiths phase” that displays IRFP character at criticality - a fundamentally new type of metal-insulator transition. Rare events often dominate the behavior near Quantum Critical Points in presence of disorder. Here shown is one such rare event, where a local region has hugely enhanced spin susceptibility. Such Mott droplets are common near Mott-Anderson transitions. This figure appeared in Phys. Rev. Lett. 102, 206403 (2009).

2. Critical Behavior at the Mott-Anderson TransitionVladimir Dobrosavljevic, Florida State University, DMR 0542026 Emergent Labs (eLABS) is an educational network connecting scientists and teachers with the shared purpose of getting students interested in – and excited about – science. We have an established community of scientists, teachers, and students who together explore the emergent universe by developing and implementing inquiry-based, hands-on investigations. The PI is the principal organizer of this outreach network, which is currently in its pilot phase. The next step is to extend the effort to a nation-wide chain with NHMFL as its “hub”, similarly as FermiLab is for QuarkNet. Two teachers participating in a NHMFL/FSU eLABS Teacher Workshop use the current probe interface to investigate Ohm's Law.