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

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

2007-08-24

arxiv.org/abs/0708.3268v1

Phys. Lett. A 372, 700 (2008).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Phys. Lett. A (in press)

Scientific paper

10.1016/j.physleta.2007.08.016

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.

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