One-step generation of three-dimensional entanglement between a single atom and an atomic ensemble via quantum Zeno dynamics

We propose a potentially practical scheme for preparing three-dimensional entanglement between a single atom and an atomic ensemble via quantum Zeno dynamics. Only one step operation is needed to obtain the three-dimensional entanglement, which reduces the complexity in experiment. We discuss how the parameter fluctuations and the decoherence impact on the fidelity of the three-dimensional entanglement through numerical simulation. The numerical simulations clearly demonstrate that the presented scheme is robust against the fluctuations of some experimental parameters and insensitive to the cavity decay and the fiber loss. Within the currently available technology, we also give a discussion on the experimental feasibility of the proposed scheme.