1995/03/17 by Alex Kamenev, Kamenev, Alex, Yuval Gefen +1
Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9503093
10 pages, 2 figures, REVTEX 3.0. Figures are tarred compressed, no changes in the text.
arxiv created 1995/03/21 · arxiv updated 2009/11/30
A microscopic theory of zero wavelength (q=0) interaction in finite--size systems is proposed. Its exact solution interpolates between the Coulomb blockade and the perturbative Altshuler--Aronov theory, in the strong and weak interaction limits respectively. The tunneling density of states and the quasiparticle life--time are calculated. The physical nature of the q=0 component of the interaction is discussed.