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We experimentally demonstrate a non-local generation of entanglement from twoindependent photonic sources in an ancilla-free process . Two bosons (photons)are entangled in polarization space by steering into a novel interferometersetup, in which they have never meet each other. The entangled photons aredelivered to polarization analyzers in different sites, respectively, and anon-local interaction is observed. Entanglement is further verified by the wayof the measured violation of a CHSH type Bell's inequality with S-values of2.54 and 27 standard deviations. Our results will shine a new light into theunderstanding on how quantum mechanics works, have possible philosophicconsequences on the one hand and provide an essential element for quantuminformation processing on the other hand. Potential applications of our resultsare briefly discussed.

Experimental non-local generation of entanglement from independent sources