Speaker: Khandker Muttalib, University of Florida
Date & Time: September 12, 2006 - 1:30pm
Location: Serin Physics, 385
Surprises in Conductance Distributions in Strongly Disordered Mesoscopic Systems
Physics and Astronomy
Khandker Muttalib, University of Florida
Serin Physics, 385; 1:30pm
I will start with an overview of how large mesoscopic fluctuations make it necessary to study the full distribution of transport properties in strongly disordered systems. Then I will introduce the transfer matrix approach in general and the Dorokhov-Mello-Pereyra-Kumar (DMPK) equation in particular that has been used to obtain some surprising features in the conductance distributions in quasi one dimension. I will then discuss the limitations of the DMPK equation and introduce a generalization that promises to be useful in higher dimensions. I will show some recent results, again surprising, on the distribution of conductances of a three dimensional Anderson insulator using the generalized DMPK equation.