Multi-component Entangled State Generation for Three-Level Atomic System with Hyperfine Structure via Dispersive Interactions

We discuss the generation of certain kinds of multi-componententangled states for three-level atomic system with hyperfine structure.The method proposed here is based on the interactions of dispersivecavity with only one atom driven by a strong classical field.It is shown that, with a judicious choice of the cavity detuningand applied coherent field detuning, the atom can interact dispersivelywith the quantized field but the classical driving field gives riseto the creation or destruction of photons conditional on the state ofthe system. In comparison with previous schemes,our method is likely to be extremely easy to realize in practice.