bridging the micro-macro gap with diffusion MRI
I am a faculty at the Department of Radiology, Center for Biomedical Imaging, New York University School of Medicine, where I spearhead the MRI Biophysics group, together with Dr. Els Fieremans. My background is theoretical condensed matter physics, which adds a unique perspective and modern physics methodology to quantifying tissue properties with diffusion and relaxation MRI at the mesoscopic scale of cell dimensions.
I received a PhD in theoretical condensed matter physics from MIT Physics Department in 2003, and subsequently worked as research fellow at Princeton and Yale in 2003-2008. I developed elastic scattering theory  for electrons in graphene, a novel nanoscale material with unique electrical properties, and exactly solved the Coulomb scattering problem in graphene, which has explained the main observable contribution to its electrical resistivity . I also introduced quantized adiabatic charge transport, of an integer and of a fractional charge, which is relevant to carbon nanotubes and graphene nanoribbons [3, 4]. This transport mechanism involves a strongly correlated semi-crystallized one-dimensional ordering of electrons (the so-called Mott insulator, recently observed ), placed in the field of an adiabatically moving periodic potential. These strongly correlated electronic states are relevant for metrology (current quantization) and for quantum computing. I have also helped to reveal collective effects in arrays of quantum dots , which may explain non-Gaussian (Levy) statistics in their fluorescence.