Entanglement swapping: entangling atoms that never interacted

Abstract

In this paper we discuss four different proposals of entangling atomic states of particles which have never interacted. The experimental realization proposed makes use of the interaction of Rydberg atoms with a micromaser cavity prepared in either a coherent state or in a superposition of the field Fock states |0⟩ and |1⟩. We consider atoms in either a three-level cascade or lambda configuration.