ABSTRACT The electron spin of nitrogen‐vacancy center and the phonon mode of mechanical resonator are widely adopted to explore information science and technology, in which the preparation of entangled states in a fast and robust manner is of significance. Here we present a scheme for creating an entangled W state by the technique of shortcut to adiabaticity. Two electron spins are magnetically coupled to a common mechanical resonator, and each spin is individually driven by a classical pulse. By encoding the dressed states of the microwave‐driven spin to a logic qubit manifold, we obtain an effective spin‐resonator‐spin system. By suitably engineering the invariant‐based shortcut with constant Rabi rates, one‐step generation of a tripartite entangled state can be realized without the adiabatic constraint. We further analyze the decoherence effects and the robustness against the Rabi rate inaccuracies and timing error. The strategy could provide a promising avenue to generate entangled states with the hybrid system.
Feng et al. (Sun,) studied this question.