External field induced switching of tunneling current in the coupled quantum dots
V. N. Mantsevich, N. S. Maslova, P. I. Arseyev+
Department of Physics, Lomonosov MSU, 119991 Moscow,Russia
+Lebedev Physical institute of the RAS, 119991 Moscow, Russia
Abstract
We investigated the tunneling current peculiarities in the
system of two coupled by means of the external field quantum dots
(QDs) weakly connected to the electrodes in the presence of Coulomb
correlations. It was found that tuning of the Rabi
frequency induces fast multiple tunneling current switching and
leads to the negative tunneling conductivity. Special role of
multi-electrons states was demonstrated. Moreover we revealed
conditions for bistable behavior of the tunneling current in the
coupled QDs with Coulomb correlations.