Coherent-photon-assisted cotunneling in a Coulomb blockade device
- 15 May 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 55 (19), 13118-13123
- https://doi.org/10.1103/physrevb.55.13118
Abstract
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 that in some cases may dominate the transport. We derive a general nonperturbative expression for the tunneling current in the presence of oscillating potentials and give a perturbative expression for the photon-assisted cotunneling current.Keywords
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