Heralded Photon Amplification for Path Entangled Quantum Communication

Fernando Sabino Marques Monteiro; E. Verbanis; Valentina Caprara Vivoli; Anthony Martin; Nicolas Gisin; Hugo Zbinden; Rob Thew

doi:10.1364/qim.2017.qf3b.3

Abstract

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We experimentally studied heralded photon amplification for path entangled states and characterise entanglement before and after loss by exploiting displacement-based measurements. We demonstrate the recovery of high fidelity entangled states over loss-equivalent distances > 50km.

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