Robust distributed entanglement by using unilateral qubit driving and pulse shaping

A scheme holding simple operations and robustness is promising for the followed experimental realization. We propose to create robust two-atom entanglement in the cavity quantum electrodynamics. Only one of the two atoms confined in two spatially separated cavities connected by a fiber needs to be operated, which makes the experimental realization easier relatively. The pulses imposed on the one atom can be shaped into Gaussian pulses, and then the robustness of the scheme against the control error is strengthened greatly. The proposed scheme may provide help for the easy, fast, and robust implementation of the distributed entanglement.