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We model the electron transport current as the photon energy is swept throughseveral resonances of a multi-level quantum dot, embedded in a short quantumwire, coupled to photon cavity. We use a Markovian quantum master equationappropriate for the long-time evolution and include the electron-electron andboth the para- and the diamagnetic electron-photon interactions viadiagonalization in a truncated many-body Fock space. Tuning the photon energy,several anti-crossings caused by Rabi-splitting in the energy spectrum of thequantum dot system are found. The strength of the Rabi-splittings and thephoton-exchange between the resonant states depend on the polarization of thecavity photon field. We observe oscillations of the charge in the system andseveral resonant transport current peaks for the photon energies correspondingto the resonances in the steady-state regime.

Oscillations in electron transport caused by multiple resonances in a quantum dot-QED system in the steady-state regime