Teleportation of an arbitrary multipartite state via photonic Faraday rotation

Details Teleportation of an arbitrary multipartite state via photonic Faraday rotation Teleportation of an arbitrary multipartite state via photonic Faraday rotation

2010-04-14

arxiv.org/abs/1004.2314v1

J. Phys. B: At. Mol. Opt. Phys. 43, 095505 (2010).

Physics

Quantum Physics

11 pages, 2 figures.

Scientific paper

We propose a practical scheme for deterministically teleporting an arbitrary multipartite state, either product or entangled, using Faraday rotation of the photonic polarization. Our scheme, based on the input-output process of single-photon pulses regarding cavities, works in low-Q cavities and only involves virtual excitation of the atoms, which is insensitive to both cavity decay and atomic spontaneous emission. Besides, the Bell-state measurement is accomplished by the Faraday rotation plus product-state measurements, which could much relax the experimental difficulty to realize the Bell-state measurement by the CNOT operation.

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