Ac-cotunneling through an interacting quantum dot under a magnetic field

Bing Dong, X. L. Lei, Norman J. M. Horing

Published 2007-08-24Version 1

We analyze inelastic cotunneling through an interacting quantum dot subject to an ambient magnetic field in the weak tunneling regime under a non-adiabatic time-dependent bias-voltage. Our results clearly exhibit photon-assisted satellites and an overall suppression of differential conductance with increasing driving amplitude, which is consistent with experiments. We also predict a zero-anomaly in differential conductance under an appropriate driving frequency.