Coherent oscillations of current due to nuclear spins

Sigurdur I. Erlingsson, Oleg N. Jouravlev, Yuli V. Nazarov

Published 2003-09-02Version 1

We propose a mechanism for very slow coherent oscillations of current and nuclear spins in a quantum dot system, that may qualitatively explain some recent experimental observations. We concentrate on an experimentally relevant double dot setup where hyperfine interaction lifts the spin blockade. We study the dependence of the magnitude and period of the oscillations on magnetic field and anisotropy.