Photon-phonon-assisted tunneling through a single-molecule quantum dot
- 25 May 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 69 (20), 205315
- https://doi.org/10.1103/physrevb.69.205315
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.Keywords
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