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Physics Letters A

Testing nonlocality of single photons using cavities

Tanumoy Pramanik, Satyabrata Adhikari, A. S. Majumdar, Dipankar Home

Published Dec 7, 2011• 2 citations
Publisher
DOI
10.1016/j.physleta.2011.11.042

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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.