Abstract
In this paper we present a simplified scheme to implement entanglement swapping in the context of cavity QED. The scheme presented here has the advantage of being much simpler than those presented previously, and can easily be adapted to perform the delayed choice for entanglement swapping, thus enabling one to also demonstrate time-like entanglement in the cavity QED domain. In contrast to previous schemes, our proposal uses just one high-Q cavity, besides the usual circular Rydberg atoms, Ramsey zones and selective atomic state detectors. The simplicity of our scheme makes it feasible with current QED technology, making it attractive from the experimental point of view for demonstrating entanglement swapping both in the conventional and in the delayed choice manner.
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