Zerobias anomaly in finitesize systems
Abstract
The small energy anomaly in the singleparticle density of states of disordered interacting systems is studied for the zerodimensional case. This anomaly interpolates between the nonperturbative Coulomb blockade and the perturbative limit, the latter being an extension of the AltshulerAronov zerobias anomaly at d=0. Coupling of the zerodimensional system to a dissipative environment leads to effective screening of the interaction and a modification of the density of states.
 Publication:

Physical Review B
 Pub Date:
 August 1996
 DOI:
 10.1103/PhysRevB.54.5428
 arXiv:
 arXiv:condmat/9602015
 Bibcode:
 1996PhRvB..54.5428K
 Keywords:

 72.10.Bg;
 05.30.Fk;
 71.23.k;
 75.20.En;
 General formulation of transport theory;
 Fermion systems and electron gas;
 Electronic structure of disordered solids;
 Metals and alloys;
 Condensed Matter
 EPrint:
 25 pages and 6 figures