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Testing nonlocality of a single photon without a shared reference frame

Authors
Brask, Jonatan Bohr
Chaves, Rafael
Published in Physical Review. A. 2013, vol. 88, no. 1
Abstract The question of testing the nonlocality of a single photon has raised much debate over the last years. The controversy is intimately related to the issue of providing a common reference frame for the observers to perform their local measurements. Here we address this point by presenting a simple scheme for demonstrating the nonlocality of a single photon which does not require a shared reference frame. Specifically, Bell inequality violation can be obtained with certainty with unaligned devices, even if the relative frame fluctuates between each experimental run of the Bell test. Our scheme appears feasible with current technology and may simplify the realization of quantum communication protocols based on single-photon entanglement.
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BRASK, Jonatan Bohr, CHAVES, Rafael, BRUNNER, Nicolas. Testing nonlocality of a single photon without a shared reference frame. In: Physical Review. A, 2013, vol. 88, n° 1. https://archive-ouverte.unige.ch/unige:36405

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Deposited on : 2014-05-06

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