Entanglement generation and control of two spatially separated asymmetric quantum dots with broken inversion symmetry and mediated by a photonic cavity is studied using a quantum master equation formalism. The quantum dots are coherently driven by a bichromatic laser consisting of a strong optical field nearly resonant with the optical transition of each quantum dot, and a low frequency field. The optical field dresses each quantum dot, and due to the presence of large permanent dipole moments in the quantum dots they are coupled by the low frequency field. We make use of the generated dressed-state scheme for entanglement control. The master equation which describes the interaction with the cavity modes and the coherent fields is numerically solved. In order to gain some insight on the role of the external parameters on entanglement, an effective Hamiltonian for the atomic subsystem is derived in the dressed state representation by adiabatically eliminating the cavity field operators. It is found that steady-state entanglement can be controlled by means of the amplitude and frequency of the low frequency field.

利用量子主方程形式主义，研究了两个具有反向反转对称性且由光子腔介导的空间分离的非对称量子点的纠缠产生和控制。量子点由双色激光相干驱动，该双色激光由与每个量子点的光跃迁几乎共振的强光场和低频场组成。光学场修饰每个量子点，由于量子点中存在大的永久偶极矩，它们通过低频场耦合。我们利用生成的穿戴状态方案进行纠缠控制。用数值方法求解了描述与腔模和相干场相互作用的主方程。为了深入了解外部参数在纠缠中的作用，通过绝热消除腔场算子，可以在修整状态表示中得出原子子系统的有效哈密顿量。发现可以通过低频场的幅度和频率来控制稳态纠缠。