Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping

Details Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping

2002-01-29

arxiv.org/abs/quant-ph/0201134v1

Phys. Rev. Lett. 88, 017903 (2002)

Physics

Quantum Physics

3 figs. Published in PRL

Scientific paper

10.1103/PhysRevLett.88.017903

Quantum teleportation strikingly underlines the peculiar features of the quantum world. We present an experimental proof of its quantum nature, teleporting an entangled photon with such high quality that the nonlocal quantum correlations with its original partner photon are preserved. This procedure is also known as entanglement swapping. The nonlocality is confirmed by observing a violation of Bell's inequality by 4.5 standard deviations. Thus, by demonstrating quantum nonlocality for photons that never interacted our results directly confirm the quantum nature of teleportation.

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