L. Dias da Silva et al. SubmittedMaterials Research Network Collaborative Research: Decoherence, Correlations and Spin Effects on Nanostructured Materials. NSF-DMR 07010581 Nancy Sandler1, Sergio E. Ulloa1, Kevin Ingersent2, and George Martins3 1Ohio Univ., 2Univ. of Florida-Gainsville, 3Oakland Univ. When two quantum dots are connected in parallel to external leads, the conductance through the system at different temperatures is affected by the proximity to a quantum phase transition. The transition separates a magnetic local moment phase from the non-magnetic exotic Kondo phase.Conductance as a function of applied voltage to one of the dots for various temperatures.

Education:The mini-workshop on Numerical techniques in many-body systems that took place in OU, brought together the US members of this collaboration in June 2007.Luis Dias da Silva during his exposition on NRG methods.Materials Research Network Collaborative Research: Decoherence, Correlations and Spin Effects on Nanostructured Materials. NSF-DMR 07010581 Nancy Sandler1, Sergio E. Ulloa1, Kevin Ingersent2, and George Martins3 1Ohio Univ., 2Univ. of Florida-Gainsville, 3Oakland Univ. Profs. Ingersent, Martins, Sandler and Ulloa were joined by postdoctoral researchers Luis Dias da Silva and Carlos Bsser during 3 days of presentations and intensive discussions. The workshop was organized by travelling postdoc Carlos Bsser who talked about ECA methods.

**