Effect of quantum entanglement on Aharonov-Bohm oscillations, spin-polarized transport and current magnification effect


We present a simple model of transmission across a metallic mesoscopic ring. In one of its arm an electron interacts with a single magnetic impurity via an exchange coupling. We show that entanglement between electron and spin impurity states leads to reduction of Aharonov-Bohm oscillations in the transmission coefficient. The spin-conductance is asymmetric… (More)


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