Entanglement swapping of atomic states through the photonic Faraday rotation

Details Entanglement swapping of atomic states through the photonic Faraday rotation Entanglement swapping of atomic states through the photonic Faraday rotation

2010-05-07

arxiv.org/abs/1005.1189v1

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

We propose an entanglement swapping of atomic states confined by cavities QED using a photonic Faraday rotation. Two schemes are considered in which we use three and four cavities, respectively, plus an additional circularly-polarized photon. After interacting with an atom trapped inside the cavity the system evolves to an entangled atom-photon state. The entanglement swapping is then achieved by a Bell-state measurement upon the entire atom-photon state.

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