We model the electron transport current as the photon energy is swept through several resonances of a multi-level quantum dot, embedded in a short quantum wire, coupled to photon cavity. We use a Markovian quantum master equation appropriate for the long-time evolution and include the electron–electron and both the para-and the diamagnetic electron–photon interactions via diagonalization in a truncated many-body Fock space. Tuning the photon energy, several anti-crossings caused by Rabi-splitting in the energy spectrum of the quantum dot system are found. The strength of the Rabi-splittings and the photon-exchange between the resonant states depend on the polarization of the cavity photon field. We observe oscillations of the charge in the system and several resonant transport current peaks for the photon energies corresponding to the resonances in the steady-state regime.

当光子能量通过嵌入在短量子线中的多级量子点的多个共振扫掠时，我们对电子传输电流进行建模，耦合到光子腔中。我们使用了适合长时间演化的马尔可夫量子主方程，并在截短的多体Fock空间中通过对角化包括了电子-电子以及顺磁性和反磁性电子-光子的相互作用。调整光子能量，发现了由量子点系统能谱中的拉比分裂引起的几个反交叉。共振状态之间的拉比分裂和光子交换的强度取决于腔体光子场的极化。