Publications

Alex Kamenev

Download from http://link.aps.org/doi/10.1103/PhysRevLett.92.026801

Abstract

We consider thermodynamic and transport properties of a long granular array with strongly connected grains (intergrain conductance g?1). We find that the system?s conductance and differential capacitance exhibits activated behavior, ?exp?{-T*/T}. The gap T* represents the energy needed to create a long single-electron charge soliton propagating through the array. This scale is parametrically larger than the energy at which conventional perturbation theory breaks down.