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Photon-Phonon-assisted tunneling through a single-molecular quantum dot

Bing Dong·H. L. Cui·X. L. Lei
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Abstract

Based on exactly mapping of a many-body electron-phonon interaction problem onto a one-body problem, we apply the well-established nonequilibrium Green function technique to solve the time-dependent phonon-assisted tunneling at low temperature through a single-molecular quantum dot connected to two leads, which is subject to a microwave irradiation field. It is found that in the presence of the electron-phonon interaction and the microwave irradiation field, the time-average transmission and the nonlinear differential conductance display additional peaks due to pure photon absorption or emission processes and photon-absorption-assisted phonon emission processes. The variation of the time-average current with frequency of the microwave irradiation field is also studied.

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Bing Dong, H. L. Cui, X. L. Lei. 2004-03-17. Photon-Phonon-assisted tunneling through a single-molecular quantum dot. https://doi.org/10.1103/physrevb.69.205315

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