Full counting statistics for a single-electron transistor: nonequilibrium effects at intermediate conductance.
We evaluate the current distribution for a single-electron transistor with intermediate strength tunnel conductance. Using the Schwinger-Keldysh approach and the drone (Majorana) fermion representation, we account for the renormalization of system parameters. Nonequilibrium effects induce a lifetime broadening of the charge-state levels, which suppress large current fluctuations.
Utsumi
Yasuhiro
Y
Institut für Theoretische Festköperphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany.
Golubev
Dmitri S
DS
Schön
Gerd
G