Entanglement swapping of atomic states through the photonic Faraday rotation

2010/05/07 by W. P. Bastos, Wesley B. Cardoso, Bastos, W. P. +5
Engineering · Physics and Astronomy · #FOS: Physical sciences #Mechanical and Optical Resonators #Photonic and Optical Devices #Quantum Mechanics and Applications #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.1005.1189

openalex publication_date 2010/05/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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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