Experimental nonlocality proof of quantum teleportation and entanglement swapping.
نویسندگان
چکیده
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.
منابع مشابه
Comment on “Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping”
In a recent letter, Jennewein et al. [1] reported an experiment demonstrating entanglement swapping among two pairs (0,1 and 2,3) of down-converted photons. They accomplished this by performing a Bell measurement on photons 1 and 2, and they verified the effect with regular polarization measurements on photons 0 and 3. By selecting data from runs in which 1,2 are measured to be in the Bell stat...
متن کاملComment on “ Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping ” Luiz
(February 1, 2008) In a recent paper in which they demonstrate quantum nonlocality for photons that never interacted [1], Jennewein, Weihs, Pan, and Zeilinger mention a seemingly paradoxical situation that arises when Alice’s Bell-state analysis is delayed long after Bob’s measurements. According to the authors, “This seems paradoxical because Alice’s measurement projects photons 0 and 3 into a...
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ورودعنوان ژورنال:
- Physical review letters
دوره 88 1 شماره
صفحات -
تاریخ انتشار 2002