Coherent photon assisted cotunneling in a Coulomb blockade device

Details Coherent photon assisted cotunneling in a Coulomb blockade device Coherent photon assisted cotunneling in a Coulomb blockade device

1996-07-19

arxiv.org/abs/cond-mat/9607139v3

Phys. Rev. B 55, 13118 (1997).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Replaced with a longer paper which includes a non-perturbative calculation. 13 pages with 1 figure. To be published in Physica

Scientific paper

10.1103/PhysRevB.55.13118

We study cotunneling in a double junction Coulomb blockade device under the influence of time dependent potentials. It is shown that the ac-bias leads to photon assisted cotunneling which in some cases may dominate the transport. We derive a general non-perturbative expression for the tunneling current in the presence of oscillating potentials and give a perturbative expression for the photon assisted cotunneling current.

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